There are three things that annoy me the most in the world, and they all happen to be things that (some) Christians do.
1. Bring politics into church. I don’t want to hear how much you hate the president from the pulpit, in your Sunday School class, or every time we have a fellowship dinner. I also don’t care whether you think America was founded on Baptists or Satan.
2. Condemn people groups to hell. Since when did man decide who gets salvation and who doesn’t? How do you know you won’t see homosexuals, Mormons, Armenians, Democrats, or Rob Bell in heaven?
3. Glorify man. Your preacher is legit, but he is not God.
That is all.
I needed to vent.
What are your biggest Christian pet peeves?
Heather Lea Kenison 
I do want to mention that Christians usually have the right intentions with these things, they just never translate well.
Do you mean Arminians instead of Armenians? Or do you really know an American Christian who hates Armenians (the race/country)?
oops. I'm so embarrassed. hahahahaha.