He goes on Fallon's show. Asks to borrow a guitar from one of the guys in Fallon's house band. It's a rare 1961 Epiphone model, after his set he throws the guitar across the stage and breaks the head, ruining the guitar. Then he refused to offer to replace it, or even sign the ruined guitar afterwards for the true owner.
What an asshole.
Story is here:
http://www.deathandtaxesmag.com/1951...one-on-fallon/