I think one of the reasons laughing is key to many bb fans is that laughing is the reaction they saw when they were first exposed to this phenomenon. When you were growing up, and saw a man get kicked in the balls by a woman on tv or in a movie, the women you were with likely laughed at it. Look at the poor boy, he's in terrible pain, and we will never have to experience that. This is just a poorly thought out theory, though. If any women disagree, feel free to kick me in the balls