Customer Service --- Computer Repair
Caller : Hi, our printer is not working.
Customer Service: What is wrong with it?
Caller : Mouse is jammed.
Customer Service: Mouse? Printers don't have a mouse!!!
Caller: Mmmmm??.. Oh really?... I will send a picture.
[UPDATE: The Picture didn't initially post. Here is the picture, which is the very punch line for the joke. Sorry for the delay.]