My cat will knead people, but he doesn't do it with his claws in. He'll extend his claws out and dig them into your skin, before pulling away. I'm used to it but my friends don't like petting him because of it.
Oh and um, he likes to drink out of the toilet, which isn't weird in itself, but he likes to stick half of his body into it (I'll add a picture later). And he knows we don't like it so he'll stalk the bathroom and wait till we leave to drink.
Oh, and my guinea pig will bite me whenever she has the chance.