What should we avoid feeding dogs and cats.?

I know from comment sense poisonous things are a no no. Thats not what my question is about. What human food should we avoid feeding cats and dogs. I know chocolate is bad for at least dogs. What else can kill or harm a cat or a dog?? I know lots of fatty foods will over time harm or kill an animal but... show more I know from comment sense poisonous things are a no no. Thats not what my question is about. What human food should we avoid feeding cats and dogs. I know chocolate is bad for at least dogs. What else can kill or harm a cat or a dog??

I know lots of fatty foods will over time harm or kill an animal but thats just common sense again. Again just to be clear I mean things that should never or very rarely be feed to a cat or a dog.
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