Shoutbox

Well, I hate seeing all these custom emoticons that people keep sending, but I never see my own because I've changed my settings, so I was wondering if you could stop other people sending them but with you able to send them.
Surely you must be aware of all the annoying emoticons out there, I know one person, she's got every letter as an emotion, she'll type "A" and you get an oddly shapped box with a flashing/glitering/rotating "A" and you can't read it without emoticons turned off.