You know another thing that really grinds my gears?
Reactionary alarmists. The people who scream that we have Satanic cults operating out of preschools, that Obama is a secret Kenyan Muslim lizard man who wants nothing more to take away our guns and thus prepare us for an inevitable invasion by the Chinese, and that video games are going to turn us all into sociopaths. Ironically, these are the same people who aren't alarmed by things that they should be worry about--the fuel crisis, global warming, the loss of privacy in many sectors, and human rights violations in Syria and North Korea.
I also have a strong dislike for fundies. You know, the belief that you can pray the gay away, and that scientists--people who have dedicated their lives to the pursuit of knowledge and make careers tracking observable and recordable phenomena--are somehow a group of uneducated clowns because they release papers on little proven facts like "plate tectonics" or "evolution" or "the Big Bang" instead of subscribing to their own ideology. And what makes it even more infuriating is that their are scientists who are also religious--they just don't go out of their way to disown fact at the expense of theology.