What grinds your gears?

Originally Posted by Jubilee Apparently when the RA comes into my room without knocking. I don't know how exactly that comes up, but it did, and my gears are ground. Seriously, WTF?! Did he grow up in a country that is considered rude in?!

Seconded to the MAX!!!!!!!

Also it grinds my gears when a foodservice employee won't let a customer say, "surprise me," when asking a question about what sort of side is to go with an entrée.