Spiders are on the menu of all of our pets when we don't take it from them, and the dog ate a wasp once (you can imagine the results, but she didn't learn).
My cat is another matter: usually she tries to eat anything if she sees that I'm eating it.
She loves cooked corn so much she's technically tremling while begging for it, with all her hair standing in different directions. A while ago she realized that apples aren't so good, but she still pretends to eat it, then spits it out when she thinks I'm not looking.
She was the funniest when a bunch of parsley got dropped to the ground. She run there, like the devil would have been on her heels, and started to wolf it down. I think she just needed to dispose of the swallowed hair with it's help, but then she got scared by the exploding laughter and ran off.