Know my pain
On a regular basis we have conversation with clients about not using why using comic sans is not a good idea for there logo or website. Often these conversation can get heated because the client just does not understand that being generic and based in 1990s goes against everything a leading designer or developer would want to do. It also should be the opposite of what you should want to do.
I personally can't describe why better than these articles so I am simply going to post them here and let you decide.
Don't ask me to use Comic Sans