I have to go with MMI on this one. I'm not angry at any religion in particular, just the way that con artists can use religion as a means of controlling people, or use it to justify atrocities, or use it as a weapon against dissent. Sure, other institutions can do similar things, but few of them actually warp peoples minds the way religions can.

Mostly, I'm angry about the way religious people fight so doggedly against what's right and just, only to turn around (once they've been beaten bloody with their own prejudices) and proclaim that they were in the right all along. (See slavery in the US). Or the way some religious organizations can justify the deaths of children, and adults, by claiming it is God's will. And I'm angry that one of the richest organizations in the world, the Roman Catholic Church, pays no taxes on any of its properties in the US, regardless of whether or not those properties are actually used for charitable work. (At one time, the Church was the largest landlord, or slumlord, in NYC, yet paid no property taxes or income taxes on the rents that they collected. This is a crime!)

And I get really angry when supposedly good Christians (mostly, because this IS the US) shrug off some of the horrific things others do because of religion by saying, "Well, they're not REAL Christians!"

I only get mildly annoyed, though, when someone says, "Thank God" when I tell them I'm cancer free. I simply say, "No, I blame God for giving me cancer in the first place. I thank the doctor for making me healthy again." Of course, I don't really blame their fantasy god, but it sure knocks them back a bit!