I think one of the biggest customer service issues I have is with waiters/waitresses.  I have been a waitress on several occasions in my life and have made fantastic tips.  Reason I made such fantastic tips is because I knew how to treat the customer, making sure I took their drink order when they sat down, making sure I knew the menu, making sure to check back once they had a chance to taste their meal, things like that.  Listening to their requests and handling them in an expedient manner.

I guess that is why I ask the same of them.  I don't generally have too many special requests as I am not a fussy eater.  But the one thing I do ask for is that they DON'T put lemon in my iced tea.  But it never fails that they come to me with a glass of iced tea with a lemon in it. 

And there are so many instances of waiters/waitresses just not doing their jobs.  If you have an instance you'd like to share, please feel free to comment.  I'd love to hear your stories!