Still 'tarded

Caller: My laptop isn't turning on. It flickers and just turns right back off again.
Me: Okay, do you have power connected?
Caller: Well, that's the problem. I think it's my power cord.
Me: Okay, what's wrong?
Caller: Well, it got cut, so I tried to repair it, but I don't think it worked.
Me: *slaps forehead against desk*