Actually, I remember when that episode came on I groaned pretty strongly, because a lot of that scene was taken from an e-mail that was being passed around at the time. So it shouldn't be too hard to find a copy of that e-mail via Google... something about oxen, as I recall.

Now that's funny, because I had never seen it. (So yeah, I'd have groaned too at the rip-off.) Still, it's such a perfect counter-agrument against the people who want to try to pull out the religion card. (Of course, common sense and the obviousness of the whole "equal protection under the law" thing having bypassed that group entirely.)