wow, bit by a 14 foot burm and not hurting?

I've seen pictures of people's hands after a big aggressive retic bite that needed multiple stitches, I would have figured just about any constrictor that size would inflict emergency-room needed attention(even if it is "only" a few stitches) if they got a hold of you.

edit: I have to say though, the couple of time's I've been bit by any snake, the surprise is the worst part of it