Home > Blog > Pet Ate Something Dangerous During a House Sit
| Quick Facts | |
|---|---|
| Did this happen to us? | Yes, during our current six-month sit in Portugal |
| What happened | The cat got into the bin and ate or chewed an absorbent meat sachet after we thought it was disposed of securely |
| What we did | Called the THS 24/7 vet advice line immediately, then observed overnight as advised |
| Outcome | The cat was completely fine by morning and hungry as usual |
| Should you try to induce vomiting yourself? | Not without guidance. It can be appropriate in some cases but genuinely unsafe in others, always a vet's call, not a first response |
Disclaimer: We are not veterinarians. This article is based on our own experience and general research, not veterinary advice. If a pet in your care has eaten something potentially dangerous, contact a vet or a 24/7 vet advice line immediately rather than relying on this article alone.
Eating something they shouldn't is one of the more common scares a house sitter will face, and it happened to us directly, on our current sit in Portugal. This guide covers what actually happened, what a vet told us to do, common household hazards worth knowing about, and what to do if it happens to you.
We are on a six-month TrustedHouseSitters sit in Portugal right now, and this happened well into the stay, a reminder that the longer you are in a home, the more chances there are for something like this.
If you are not yet on the platform, a 25% discount on membership is available here. This article is a companion to our broader guide on handling a pet emergency when the owner is unreachable, which covers the full escalation process. This one is specifically about ingestion.

What Actually Happened
The cat we look after genuinely loves food, closer to a dog in that sense, always ready the moment we stand up near the kitchen. After cooking sausages one evening, I cleaned the tray, and put the absorbent pad that sits under raw meat to soak up liquid, in the bin. I thought it was secure.
Getting up for water in the middle of the night, I noticed the bin had been knocked over. The sachet, which had been glued to the plastic tray, was gone, either chewed up, swallowed, or scattered somewhere I couldn't find it. We couldn't be certain how much the cat had actually eaten.
We called the THS 24/7 vet advice line immediately. The vet talked us through the situation calmly, confirmed we were doing the right things, and advised observation rather than an immediate emergency vet visit, watching specifically for vomiting, diarrhea, lethargy, or refusal to eat. I stayed up until three in the morning watching the cat, who mostly just slept. By morning, he was completely normal and hungry as ever. The lesson that stuck with us: bins are not as secure as they look, and it is worth treating them that way from the first day of any sit.
Common Household Hazards Worth Knowing
Most of these are well documented, and none of this is exhaustive, but they cover the items most commonly involved in real ingestion cases.
| Item | Why it's dangerous | Notes |
|---|---|---|
| Chocolate | Contains theobromine and caffeine, toxic to dogs and cats | Darker chocolate is more concentrated and more dangerous |
| Grapes and raisins | Can cause kidney failure in dogs, even in small amounts | The exact toxic mechanism is still not fully understood, avoid entirely |
| Onions, garlic, chives | Damage red blood cells, can cause anaemia | Cats are generally more sensitive than dogs |
| Xylitol (sugar-free gum, some peanut butters) | Causes a dangerous drop in blood sugar and can cause liver failure in dogs | Increasingly common in household products, worth checking labels |
| Alcohol | Can cause vomiting, breathing difficulty, and in serious cases, coma | Dangerous even in small amounts |
| Macadamia nuts | Causes weakness, tremors, and elevated temperature in dogs | Effects usually appear within 12 hours |
| Cooked bones | Can splinter and cause internal injury or blockages | Raw bones carry a lower splintering risk but their own bacterial concerns |
| Lilies (true lilies, all parts including pollen) | Can cause acute kidney failure in cats | One of the most dangerous common houseplants for cats specifically |
| Absorbent meat sachets and packaging | Choking and blockage risk, may also carry residue from raw meat | Exactly what happened on our Portugal sit |
What We Now Do Differently
Since this happened, our approach to any sit has changed in a few concrete ways. We now remove any absorbent sachet from meat packaging and dispose of it in a bin that actually closes securely, not just one that looks closed. Anything with real appeal to a curious cat or dog, chocolate, food wrapping, anything with a strong smell, goes up high and genuinely out of reach, not just out of sight.
Caro taught me something else worth passing on: crush cans after use rather than just rinsing and binning them. Cats sticking their heads into a can and getting stuck is a genuinely known hazard, and it is a two-second habit that removes the risk entirely.

What to Actually Do If It Happens
Contact a vet or a 24/7 vet advice line first, before anything else. If you are on TrustedHouseSitters Standard or Premium, this is exactly the situation their vet line exists for, our full process for that call is covered in our pet emergency guide. Describe exactly what was eaten, or what you suspect was eaten, and roughly how much and how long ago. Follow their guidance on whether to observe at home or bring the pet in immediately.
Do not attempt to induce vomiting yourself. This is genuinely important, and it is one of the most common mistakes people make in this exact situation. Inducing vomiting can be the right call in some cases, but only within a narrow window (generally within about two hours of ingestion), and it is unsafe in others, if the substance is caustic or sharp, if the pet is already lethargic or showing neurological symptoms, or in cats specifically, since the home method used for dogs, hydrogen peroxide, is not safe for cats at all. Getting this wrong can cause aspiration pneumonia or damage on the way back up that is worse than the original ingestion. This is exactly the kind of decision a vet needs to make based on what was eaten, how long ago, and the animal in front of them, not something to attempt as a first response on your own.
Contact the homeowner as soon as reasonably possible, unless every minute genuinely counts and getting to a vet immediately takes priority. In most ingestion cases, effects are not instant, there is real time to get proper advice before acting, which is a reassuring thing to know in the moment rather than panicking that the clock is already run out.
It is also worth knowing that eating something dangerous does not automatically mean disaster. A friend of ours had a cat that once ate chocolate and was rushed to the vet, and the cat was completely fine. Dangerous does not always mean catastrophic, but it always means "call a vet and find out," not "wait and see" on your own judgement alone.
Conclusion
A pet eating something they shouldn't is one of the more common scares in house sitting, and it happened to us directly during a sit that had otherwise gone smoothly for months. What mattered most was calling the vet line immediately, following their guidance rather than guessing, and staying calm through the observation period. Since then, securing bins, storing food and hazards genuinely out of reach, and crushing cans have become standard habits on every sit, not just this one.
Caro and I have completed 20 house sits across 12 countries, driven 19,000km across Europe in our 1998 VW T4, and saved over $26,500 in accommodation costs over three years of house sitting. If a pet in your care has eaten something you're unsure about, contact a vet immediately, and if you want to talk through a specific situation, DM us @housesittersguide, we answer everyone.

Frequently Asked Questions
What should I do if a pet eats something dangerous during a house sit?
Contact a vet or a 24/7 vet advice line immediately and describe exactly what was eaten and roughly how much. Follow their specific guidance on whether to observe at home or bring the pet in right away. Do not attempt to induce vomiting yourself without veterinary direction.
Should I make a pet vomit if they've eaten something toxic?
Not on your own, no. Inducing vomiting can be appropriate in some cases, generally only within about two hours of ingestion and depending on what was eaten, but it is genuinely unsafe in others, including for cats, where the common home method used for dogs is not safe at all. This is a judgment call for a vet to make based on the specific situation, not something to attempt as a first response yourself.
What household items are commonly dangerous if a pet eats them?
Chocolate, grapes and raisins, onions and garlic, xylitol, alcohol, macadamia nuts, cooked bones, and lilies for cats specifically are among the most commonly reported hazards. Packaging like absorbent meat sachets is a less obvious but genuine risk too.
Does eating something toxic always mean an emergency vet visit?
Not necessarily. Effects are often not instant, and a vet or vet advice line can usually help you determine whether observation at home is appropriate or whether immediate treatment is needed. The key is contacting a professional promptly rather than guessing on your own.
How can I prevent this from happening on a house sit?
Secure bins properly rather than assuming a closed lid is enough, keep food and anything with strong smells genuinely out of reach, and crush cans after use since pets can get their heads stuck in them. Small habits like these meaningfully reduce the risk.









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