Here is a link to one such story:
http://www.livejournal.com/community/customers_suck/10929371.html
I requested permission from the poster to put a link here...they didn't exactly say yes but then they didn't say no either. Actually, here is their response:
Quote, "and explain to me, how expecting a table to respond to me when i ask them a general question "hey how are you guys doing tonight" is bad service? thats part of our required schpeal at my job."
Maybe I'm wrong but the whole tone of the post struck me more as "a waitress I hope I never encounter" rather than "customers suck".