The worst bite I'v had was from a 8' Redtail Boa that I raised from a baby. A friend of mine asked me to bring my snake to her 6th grade science class for creature feature day and it bit me in the head in front of the entire class. Didn't really hurt but there was a lot of blood. Needless to say I was the coolest guy ever to feature a creature and the kids talked about it for years. "Remember your friend that brought his snake in and it bite him in the head".
It was totally my fault I should have known better than to bring him in front of a classroom full of kids when he had never seen more than 3 or 4 people at one time. I was much younger and stupid but she was a hot teacher so it was worth it. LOL