Your strangest quirk / pet peeve

[swansonbb]

OK, on a serious note - people who don't know the difference between your and you're, there and their, or its and it's. But, my biggest pet peeve is the over use of the word 'myself', when you should use the word 'me'. For some reason, "myself" is way overused and misused.

Or hisself. Or people who don't know the difference between losing something and "loosing" something (what are you loosing? Is that like letting slip the dogs of war?).