Stupid Human Tricks on Letterman September 4, 1984
10:05
Stupid Human Tricks on Letterman, February 26, 1987
12:24
1983 David Letterman Stupid Human Tricks
9:04
Stupid Pet Tricks
6:56
Fan Request: The Amazing Regurgitator Swallows Light Bulbs And More | Letterman
9:12
Stupid Human Tricks on Letterman, May 26, 1986
8:24
Dave's Mad Monkey Tea Party | Letterman
10:18
1988 - Stupid Human Tricks (Dave Does One)
8:50