Customer:My keyboard is not working anymore.
Tech support:Are you sure it's plugged into the computer?
Customer:No. I can't get behind the computer.
Tech support:Pick up your keyboard and walk 10 paces back.
Tech support:Did the keyboard come with you?
Tech support:That means the keyboard is not plugged in. Is there another keyboard?
Customer:Yes, there's another one here. Ah...that one does work...

Ramkumar Shankarrandom