At the company I work for we run an auto ticket generator to help manage and track help desk requests.
The send an email in and get a responce letting them know that the request was accepted and someone will take a look.
It is funny how most of them greet the auto ticket generator and ask how its afternoon is going, but that is only the beginning.
One perticular occasion, a user got into quite the email battle with the AUTO ticket generator. They send a request in and get a responce. Which they reply with a "Thank you". (always nice to thank the request server), which of course gets them another auto ticket. Well, you can see where this is going, but they then responce saying they are glad the request will be looked at but another email isn't required. (clearly they don't read them) Eventually they were yelling (well caps lock was on) to stop emailing them back, they want to get work done.
Eventually the user got annoyed and calls the department up (and I happen to be lucky enough to be the one picked as the target). They were very upset and questioned the professionalism of the dept. "It's not a funny joke, so stop". I am confussed as to what they are talking about until I look at the request list. I had to put them on hold so they didn't hear my laughter...