A pebble caught between the wrinkle of a flea's ball.
Hang upside down and make a noise like a banana.
Have someone throw it at you.
Professor: Astronomical.
FLASH... AAAHHHHHHHH. Its the language of the universe...
Danny DeVito
A: Because if they were small, smooth, white, and hairless, they'd be aspirin tablets!
Pebbles!