John Martyn and Danny Thompson used to tour together years ago, and John has told many stories of practical jokes. One involved flying to Australia or some other far-off (from England) place for a tour. When they got there, they'd be totally jet lagged. One time, John let Danny fall asleep, then set the hotel room clock eight hours ahead. He went down to the lobby of the hotel and called Danny on the phone, waking him up after only about twenty minutes of sleep. "Man, where the hell are you?" he asked. "We've got to leave in ten minutes, get your arse to the lobby!" Danny looked at the clock and panicked. John hid himself in some corner while Danny, bleary-eyed and staggering with exhaustion, emerged from the elevator and wandered around the lobby with his double bass, looking like he'd burst into tears any moment.

Cruel, yes, but funny...