What I really hate are the ones for the smileys, and if you accidentally roll your mouse over it it screams out "OH MY GOD, NO WAAAAAAAAAAAY!!!!" In the most annoying voice ever. That really makes me want to buy the smiley, if I know its gonna make my ears bleed
At least I havent seen any that make noise without you having to scroll your mouse over first.
Edit: Get Firefox, I havent tried it myself, but everytime a thread like this shows up, someone always says to get firefox, so I thought I would go ahead and get it overwith.