I have a theory as to why Rocket hasn't bitten anyone in a while. Yes, his nervous aggressive days are pretty much behind him, but I don't think he feels we are any less deserving of a good chomping. The thing is, he has so perfected his facial expressions he no longer needs to waste his energy actually moving - these days he can get his way with a simple look. I mean, just look at this face! Oh my!!!
WE LOVE YOU ROCKET BUNNY!!!!! :-)