This evening i got the urge to take out Esteban and play with him but when i went to touch him he opened his mouth and started hissing.. really really loud. He looked as though he had no intention of striking but was obviously very agitated by me bothering him. He's never done anything remotely like this before. I'm just worried that now since he's in a 100% proper environment that his true side is coming out, and that he secretly is a jerk.

I know there's other hissing posts on this site, i read some but they all had different conclusions. Maybe he has to poo like this guy http://www.ball-pythons.net/forums/showthread.php?t=25928&highlight=hissing

Whatever it is i'm praying he gets over it..