I think the hardest part would be forcing yourself not to immediately jerk back when you get bit, since that will pull teeth out and then the snake will have trouble eating.
I've been bit a ton by Khaa and can say for myself that the worst part of being bit is the shock. A BP bite doesn't really hurt much, I've had worst bites from hamsters and rats. Got bit in the same place on my hand, BP bite barely had blood, but that rat bite was gushing blood, it was horrible. That being said, the rat did bite much deeper. If anything, watch out for those rodents lol.