Anytime men--strangers or friends--are grouped together, men turn to sports. It's the universal language of most men and wagering a sports related contest is a way for naturally agressive men to compete in a non- aggressive manner.
I say this to explain that in March, Greg entered a NCAA Basketball Bracket contest. March Madness is a great time for men to measure each other's knowledge and make foolish bets based on what they think they know. The penance for the bracket losers? Wear a mustache for one week. I present to you, Greg with a Hitler-esque Mustache, minus the gotee.
Better luck next time Greg!