I've got bloods and now an I.J. Carpet python. Both my bloods are unpredictable despite lots of handling. The smaller one is reliable about 80% of the time, the other it's pretty much 50/50, and you have to kind of read what mood they're in to see if they'd like to come out.

The little carpet python I've only had a few days and picked him (I think it's a boy, I forgot to ask, but I'm really hoping for a girl, I have better luck with girls) up from a show. He's very sweet and curious, tons of fun to watch, and an easy keeper.