I heard a story on "this American Life" (by Ira Glass), how if you treat customers more indifferently or more rudely, you get bigger tips.
They ran some "informal experiments" at a restaurant...
http://www.thislife.org/Radio_Episode.aspx?sched=1177
"The allure of mean friends"
Very interesting.........
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"Pam" Bäckström, DY '81, WSU, Dayton, OH - Bloomington, IN
Phi Mu - Love.Honor.Truth - 1852 - Imagine.Believe.Achieve - 2013 - 161Years of Wonderful -
Proud to be a member of the Macon Magnolias - Phi Mu + Alpha Delta Pi