The game’s called “roshambo”, see Youtube ‘funniest videos’ and numerous South Park episodes. Maybe it’s therapeutically discomforting or stress-relieving for males to laugh at a fictitious kick in the nuts, rather than be empathetic. Although it only works if it’s males doing the joking!

Incidentally, popular belief is that females aren’t vulnerable to being kicked in the groin, but that’s just a belief of course. Though not as low on the anatomy, even the pubic bone can hurt like hell when impacted lightly but directly with a knuckle or tip of a shoe.

Those trained for this still require a good deal of prep time, and must maintain composure and breath control in order to not get hurt when receiving the strike. Chasing/running, mental frustration, drunkenness, fatigue, even laughing might undo all of that, since they effect one’s ready state.

I was at a Bujinkan seminar in Richmond, BC once when the out-of-town teacher demonstrated receiving kicks to the groin and punches to the throat. It’s no joke, for sure. But beforehand, he mentioned that he could be in for some pain, since he shared in some joking and laughing earlier on.

Now, if Brante could just tailor make some bust-a-gut jokes to use as a technique against situations like these!