Do astronauts know where babies come from?

You would think that with all their mathematical knowledge and technical skills, the idea of child birth wouldn't be too far out of their grasp especially considering they probably have kids of their own. But there is something about pre-launch cake eating that just doesn't sit well with a lot of 'nauts and they get a little jittery, maybe they even throw a couple drinks down their gullets, we can't be too sure, although let's please hope that is the case, because if this is their sober response, we're all doomed.

-Binkie McFartnuggets