Eric Garcetti is the mayor of Los Angeles, and he was at a rally yesterday to celebrate the second Stanley Cup championship for the L.A. Kings in the last three years. And even though it was on live TV, Garcetti decided to drop an F-BOMB. The funny part is, he admitted that he SHOULDN'T swear right before he DID swear. He said, quote, "There are two rules in politics. They say never ever be pictured with a drink in your hand, and never swear . . . but this is a big [EFFING] day."  LOL   (WARNING:  CONTAINS ADULT LANGUAGE. DO NOT VIEW IF YOU KNOW YOU WILL BE OFFENDED OR UNDER 18...THIS IS THE ACTUAL CLIP AT AIRED ON TV)