David Letterman - Stupid Human Tricks
8:31
Stupid Human Tricks on Letterman September 4, 1984
9:21
Stupid Human Tricks - Dec. 01, 2004
8:14
David Letterman Daniel Tammet Mathematics Genius Prodigy | Free slideshow @ www.j.mp/BharatanMaths
11:14
Stupid Human Tricks 9/25/2012, The Late Show w/David Letterman
6:55
Stupid Pet Tricks.. One Real Smart Dog and One That Tries Hard:)
7:03
Stupid Pet Tricks on Letterman, February 19, 1987
10:18
1988 - Stupid Human Tricks (Dave Does One)
22:59