Aaaw I so didn't expect this info, was so sweet from you. I'm a vet myself. There's two things that can kill dogs and cat really fast.

1. Non-steroidal anti-inflammatory drugs. Like ibuprofen, acetaminophen, aspirin, etc. Human doses are lethal for our pets. And be really careful when you get the vetdrugs, because they're flavoured (chewable) so your pets may eat them all at once.

2. Used condoms. You just can not immagine how many pets have to go through surgery because people doesn't toss condoms properly…

Those where my two cents, hope they help