Stupid Human Tricks on Letterman September 4, 1984
10:18
1988 - Stupid Human Tricks (Dave Does One)
7:03
Stupid Pet Tricks on Letterman, February 19, 1987
9:25
The First Stupid Human Tricks On "Late Night" | Letterman
8:14
David Letterman Daniel Tammet Mathematics Genius Prodigy | Free slideshow @ www.j.mp/BharatanMaths
9:19
Stupid Pet Tricks on Letterman, March 29, 1984
9:21
Stupid Human Tricks - Dec. 01, 2004
9:39
Kids Tell Jokes on Letterman, June 9, 1992
12:24