A well-known actor while shooting a big movie on the Universal lot back in 1999 dressed up as "mother" and leapt out from behind the Psycho house and scaring the bejeesus out of everyone on the tram, including the guides. The movie was Man on the Moon and the actor was Jim Carrey. Tram operators spoke to the film crew for an explanation and they said he was just trying to channel the creative energy of Andy Kaufman (the comedian he played in that movie).

He wanted to repeat the stunt some years later in full Grinch make-up but the studio publicity department went mad as the make-up was being kept under wraps until nearer the release date.