One of the first books I read this summer was Waiter Rant by a cynical Steve Dublanica (The Waiter) and it was laugh-out-loud funny. It came out in paperback in Aug. 2009, so I am about a year late in finding it. You can get an idea of his humor from an article on his blog by the same name.
Below is a humorous list by the NY Times of 100 things restaurant staffers should never do. Dublanica follows each item on the list with his own commentary.
http://waiterrant.net/?p=1485
The book also includes an appendix with rules on how to be a better customer. Jennifer says it's always a bad sign if the customer walks into a coffee shop and orders hot tea...kind of like when I walk into a coffee shop and order Diet Coke.
You can also read friend Mandy's rules here
http://mattmandymitch.blogspot.com/2009/08/tips-for-dining-out-diatribe.html
can be purchased here
http://www.indiebound.org/book/9780061256684