Man Flips Out at Post Office, Threatens Karate in Rant Against Woman

President Trump's not the only one threatening the U.S. Post Office these days -- meet this maniac, who screamed, yelled and busted out some martial arts ... until a Good Samaritan got involved. Check out this wild video of the guy losing it...

Man Flips Out at Post Office, Threatens Karate in Rant Against Woman
President Trump's not the only one threatening the U.S. Post Office these days -- meet this maniac, who screamed, yelled and busted out some martial arts ... until a Good Samaritan got involved. Check out this wild video of the guy losing it on a…