I imagine getting hit with a dart is rather painful, let alone in the head. I went tag balling once with a group from the dojo (they decided girls against guys would be fun… I found the first couple rounds terrifying. My head instructor was running around like a commando until he lost his gun for neglecting to put the safety on during break. We all thought we’d be safer but he preceded to take us out and steal our guns on the next round. Eventually the ladies did prevail as we didn’t waste ammo like the men did!) Anyway, one guy did take a shot in the neck and was bruised for a week. I got hit on the upper arm and it left a loonie sized welt (for those of you not familiar with Canadian money look that up and that sentence will make a lot more sense).
Long story short: tag ball equals ouch, tranq dart??? 
And a belated:


