Seven-time Olympic gold medal winner Mark Spitz grew a moustache in college because his coach told him he couldn't. It took him four months and became a personal accomplishment.

Swimmers usually shave all body hair to reduce drag and Spitz planned on shaving his for the 1972 Munich Olympics; however, people gave him so much attention about it, he decided to keep it. He's quoted as saying: "I had some fun with a Russian coach who asked me if my moustache slowed me down. I said, 'No, as a matter of fact, it deflects water away from my mouth, allows my rear end to rise and make me bullet-shaped in the water, and that's what had allowed me to swim so great.'