[Ads-l] "Don't be that guy !"

[Jonathan Lighter]

"Don't be gauche or offensive (like the fool or knave who would act as you
do)."

Countless 'Net and Newspapers.com appearances. I heard it in '95 or '96.
This seems to be the effective origin:

1994 Adam Leff & Zack Penn  _PCU_ (film):   What's this? You're wearing the
shirt of the band you're going to see? Don't _be_ that guy!

JL
-- 
"If the truth is half as bad as I think it is, you can't handle the truth."

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