To make matters worse, rebooting the server does not delete the sleeping processes. They seem to be on the process list after the restart. Is there some setting in MySQL that tries to reconnect to those things automatically or something? If so, can it be disabled?
Also, how do I stop you people from using my Gravatar image on this forum automatically? You probably don’t recognize the logo, but if it were recognizable to people my identity would have basically been outed on this forum because of some idiot at WordPress thinking it would be a good idea to match forum profiles to Gravatars automatically without prompting the user for permission first.