Angry Cat Syndrome

We are taking care of a cat for some friends right now. This cat has what most kittens have: Angry Cat Syndrome. The kitten will be really calm and then all of sudden it attacks your foot or back, coming out of nowhere and latching on to appendage or clothing. It took me almost the whole first day to realize that the cat seems to be teething. Can cats teeth? Well, it seems like it. The thing is a vicious monster at times. I want a cat, but I think I want one that has just come out of it's kitten years. Hmm, that's funny. I feel the same way about children. ;)