Oops, sorry PAP mate, my eyesight's not what it was.
We did this to one of my colleagues (i.e. workers) once and it took him a little while to work out what was going on. Also he hated YMCA (the song by the Village people, not the institution) so we replaced all his sound files with the same sample of the song so whatever he clicked he heard the opening words of the song.
Also next time you're in PC World and see a desktop type Ctrl-A, Enter and walk away purposefully.
Does anybody actually read everything that everybody else writes? Surely that's bordering on the obsessive These people must spend all day sitting on ths forum. Not me! I've got lots of really interesting things to do.