You know what drives me crazy? When people use the wrong homophone. You know, like when your reading something and they just use the wrong word two many times. It drives me nuts!
You know what else drives me nuts? When people are so convinced of their own genius that they are unwilling to consider that other people may be right, and, by extension, that they may be wrong. I try to tell those people all the time that they should really listen to me and realize that I am right and they are wrong, but they just don’t get it.
It just goes too show you: some people won’t listen even when your write!