What's the difference beween a theist and an agnostic?

There's really not much difference at all.

A theist is a fucking idiot.

An agnostic is a full-of-shit fucking idiot.

There is only one kind of person more fucking retarded than a creationist. They are called agnostics.

They believe it's impossible to say with 100% certainty there's no magical fairies hiding somewhere in the universe.

Do they make the same claim about magical Easter Bunnies? Probably not. Therefore magical fairies are more likely than magical rabbits.

Sure, that makes sense.

I never met an agnostic who wasn't a fucking asshole. Agnostic scum are worse than terrorists and they need to be exterminated.