IT Pet Peeve O' The Day

I've gotten this enough that it's now an official pet peeve: people think I'm their password manager. I've gotten this from three or four people over the past two weeks on our color copier. We've set up password protection on color copies because of the penchant for abuse inherent in a color copying machine. Because of the numerical keypad, it's a number based system and so people's user names are things like 10, 11, etc. The password is always some variant on what an idiot would have on their luggage, but the user name is something I would expect people to remember. I certainly haven't. Nevertheless, they don't remember their user name and they expect me to. I then have to set them up with a new user name and the same idiot password. Maybe I shouldn't be annoyed by this, but is it really too much to ask someone to know their own user names and passwords?