"You Only Live Once," a phrase sorority girls use to signal that they're about to make a bad decision, has recently become freaking huge with everyone else. Most historians credit the hip-hop artist Drake, who observed, "You only live once, that's the motto nigga Y.O.L.O." on his hit song "The Motto." And while Y.O.L.O. is currently the M.F.T.M.A.T. (Most Frequently Trending Meaningless Acronym on Twitter), we regret to inform the young people of America that we've found multiple exceptions to that rule.