I was playing in Laser Trek (the indoor arena here in Calgary) and my team had split into two spearheads and we were attacking on the far sides of the arena. My job was to run over to the other team and tell them we were going to attack when somebody screamed out the codeword.
So I was running over there in a u-fashion and it turns out that SOMEHOW an enemy had snuck past our offensive teams and was waiting at a chokepoint. He heard me coming (god damned high caps) and hid on a tight corner. I came running around the corner. There he was, crouched, poking his knife in my general direction. Unlucky for me, I am tall. He stabbed me directly in the crotch with his rubber knife. Oh boy. We were laughing about it a couple minutes after the pain stopped.