Why not use a trick we actors use, cover your eyes and ears to s...
Actor: (singing) Why not use a trick we actors use, cover your eyes and ears to see what it would be like to be blind and deaf. See what plays inside your mind.
(Cartman does so and it is followed by a montage of horrific scenes, the holocaust, someone on fire, grizzly operations, a dead rat being eaten by another rat, etc.)
Cartman: (takes off blindfold and ear muffs) WHOA!
Actor: Anything useful?
Cartman: No, just the stuff i usually see when I close my eyes.