When Jimmy Fallon abruptly canceled his last new Tonight Show episode before a two-week break last month due to an unexplained injury to his hand, details were sketchy at first. Well, last night, he returned to the show with his left hand in a cast and spent several minutes telling his audience exactly how close he came to losing his finger after he tripped and fell on a rug in his home and caught his wedding ring on the counter as he went down. Whatever you do, don’t Google “ring avulsion.” Watch video below, via NBC: