My best friend bet me $100 that I can't run a 5K (metric measurement) in less than 22 minutes. He didn't expect me to actually say yes, but guess what? Challenge accepted!
Unfortunately, I don't run at all. I'd rather do almost anything--get the measles, stick my hand in an alligator's mouth or write a thank you letter. Plus, we set August 1 as the date I have to do it by, so I don't have time to train.
But his mistake is your gain! It's a once in a lifetime offer! You get to dress like a stranger, wear a black mask, and try to trick that stranger's friend into giving him $100!