Guy Getting Hit in the Sack with Tennis Balls

My friends Doug, Lara, Steve and Jenny run an Improv comedy club called the Idiot Box. They work clean, but every once in a while they do something they call Extreme Improv which has a lot to do with pain. Here we see one of the "Idiot Boxers" getting hit in the nuts with a bunch of tennis balls. (I just photographed this-I did not throw anything.)