Office Keyboard Hacks

I came in early this morning and messed with my co-workers keyboards...mwuhuhahahha.  This is a dead simple hack.  A standard cutlery knife will easily 'ping' off the keys and you can rearrange them.  For extra annoyance, try unplugging the mouse too.  it's great watching people wiggle the mouse and stare blankly at the computer screen waiting for it to wake from sleep.