I'll let you into a little secret: I run a little hot. You shouldn't be surprised (if you know me or if you've seen my writings around the interwebs) to learn that I have a quick temper and I let it out on the internet. In person I am a lot more controlled, but push far enough and I will snap. Usually I give people a chance, if they are polite and original I can hold it back and I will be polite right back. If you start off as an ass or repeat tired old arguments as if they are brand new, you get one barrel of the literal shotgun. If you want both right away though, there are a few things you can do and when it comes to religion there's one that really makes me see red - accuse those without religion of being immoral, selfish, amoral, greedy or somehow less 'nice' than those with religion. That will get you an immediate "Fuck you."