Ever pull a prank on somebody for laughs?

A few weeks ago (I think) I went to a friend's house for a LAN game of Half Life. The hub that connets all of the nic cards together was missing one cable. So we had to get one of the comps a length of coaxil cable. We then played Janken to see who drives to Circuit City to by some cable. Of course my friend Chris lost so he drove down, while he was gone we went to his keyboard and pryed off all of the letter keys and put them back on in ABC order instead of QWERTY order. When he came back he never noticed it untill he tried to type with it. He freaked out.