Our cats are mentally deranged. They seriously are. The female, Audrey, will be purring away as if she's having a wonderful time. Then she'll turn around leisurely and bite whoever's petting her. She also hobbles around like she's drunk and is probably the least graceful cat I've ever seen. When climbing up on the furniture, she often misses where she intends to land and barely hangs on for dear life. Which I'm sure doesn't do good things for the furniture.
Sebastian is a little terror. He hasn't attacked my legs in quite a while now, but he still attacks Audrey. And not in a playful way. He also tears up the furniture. But the insane thing he does is he just suddenly starts meowing like crazy and running around all over the house. Or he'll sit upstairs meowing when we're downstairs, as if he's forgotten where we are. He's a very silly cat. He also has to be there whenever you're doing ANYthing. Cooking dinner, walking, going to the bathroom... anything.
We were thinking of getting rid of them for a while, especially after Audrey bit Sarah hard (the wound didn't properly heal for over a week). But we love them and we'll probably keep them.