Actually, I think an on-going rapture where people are progressively raptured as they meet the criteria would be way funnier...
Fundie: Oh Lord! Forgive me for my sinful love of Oreos! See now how I give them away to the needy in thy name.
Fundie: [starts handing out oreos to passers by] (Have a biscuit, praise Jesus! ... Have a biscuit, praise Jesus! ... Have a biscuit, praise Jesus! ...)
Atheist: Dude, that is so not going to work!
Fundie: Fuck off, heathen! (Have a biscuit, praise Jesus! ...)
Atheist: And that won’t help none either.
Fundie: You will not distract me from doing the Lord’s work with your foul and corrupt words.
Atheist: Well that’s kind of the point. It’s not the Lord’s work is it?
Fundie: Ha! I am giving to the poor, you imbecile!
Atheist: Yes, but for selfish reasons. If God (assuming it was him) was so easily fooled by the facile and shallow appearance of doing good, you wouldn’t be here in the first place.
Fundie: But I’m doing what it says in the bible?!
Atheist: Yes, but it is not for good deeds you are judged, but for good intentions. Doing the right thing knowing you’ll get the mother of all rewards for it isn’t the hardest of choices is it? Doing it because, deep down, you know it is the right thing to do, doing it even if that means you may have to sacrifice those rewards, that is a lot harder.
Fundie: [snorts] Like you’d know anything about sacrifice!
Atheist: Hey, I’m sticking to my rationalism in the face of a billion unexplained disappearances! I will trust logic and reason to get me through, even in the face of (a possibly literal) Armageddon.
Fundie: [rolls eyes] Oh, so that’s it! You’re trying to get me to be an atheist like you! Do you dispute the proof of your own eyes? GOD IS REAL!
Atheist: [shrugs] Well it’s certainly a possibility. But don’t your own eyes tell you that what you thought was proper Christian behaviour was probably wrong?
Fundie: Aww, how sweet! The satan-worshipping commie atheist is worried about poor wittul me! I’m not buying it, fuck off! (Have a biscuit, praise Jesus! ...)
Atheist: Well, if this is the rapture, these next years are you’re and my only chance at redemption. I didn’t like to see you wasting your time putting on a show for God when you might spend it working out where you went wrong. Honestly, I was only trying to be helpf...
*A golden light from heaven shines on the atheist, who disappears with a [POP].*
Fundie: [shakes fist at sky] You pernickety bastar-r-r-d!