C'mon, all of us have had a herp that was downright mean. Just a hateful, evil creature. What do you keep that never misses a chance to light you up?
For us it would be our amazon tree boas. Big surprise there, huh? :D They are lucky they are pretty otherwise I wouldn't even bother with these grumps! We also had a young coastal carpet that could not be tamed and rivaled our atbs for attitude, a kenyan sand boa that had the strongest bite pound for pound of any snake I ever met and a female reverse okeetee corn that, although she never got a hold of me, she sure tried!
I don't wanna hear about your snake that bit ya once, I wanna know what ALWAYS bites or tries to bite you. Pics are a plus, pics of bites are even better.