I am proud to use Comic Sans. On the small sheet of paper taped to the screen connected to our KVM-switch all the hostnames of the windows servers are written in it, so you know what to expect if you switch there.

I noticed balsamiq uses comic sans or something very much like it. Probably one of the few appropriate uses it has.

years ago, when I got my first PC with a copy of Word installed on it, I actually enjoyed to create "letters" using the Comic Sans font. with the years, this special sentiment vanished and I started to dislike the font. I actually know a professor on our university that uses the font in his wiki and that is a little bit gross.