Oh, I loved this article about the Comic Sans font. It just always seemed to me like this font was the one that came free with your Microsoft Word software ... it was just different enough to stand out from Times New Roman and Arial, and it always seemed that it was getting overused.
I think my personal favorite overuse of Comic Sans was one of my former coworkers who used this font as her email signature. If that doesn't scream unprofessional, then I don't know what does. I guess dress it up with some blinking pink neon and you'll be all set.