I have yet to receive a bite, thankfully. Epic seems to be a gentleman, once out. So long as you read him. Don't go into his enclosure after hours. Don't try to take him out day before or of feeding. And I give him a little spritz before I put my hands in his enclosure, if its for anything other than feeding. He seems to understand this, that no food is incoming. Because he is always looking, lol. He has only come off his perch twice for me on his own (although I haven't given him a lot of opportunities, since he is so young I haven't had him out much). Since he is still a baby, I take him out on his perch so he is used to me and being out occasionally. He is really awesome though, and I'm super happy with him.
You can see Epic here-
http://ball-pythons.net/forums/showthread.php?t=194980