Prince performed a couple of songs Friday night on “Late Night with Jimmy Fallon.” Jimmy introduced him as “one of the most legendary and influential musicians of all time. ” Apparently that praise went to the Purple One’s head. Prince borrowed a guitar from “Captain” Kirk Douglas of Fallon’s house band, the Roots. According to a tweet from Roots’ rapper Black Thought, Prince refused to autograph the guitar. Instead, he tossed it into the air at the end of the song “Bambi.” He then exited the stage. The careless toss resulted in a splintered headstock, which means a ruined instrument.