Taste of Freedom has probably my all-time fav Futurama joke; when Zoidberg jumps into the pond around the embassy, he dog-paddles to get to the door. This huge crab creature can barely swim. Cracks me up every damn time.

That's actually not too far away from the Lehane story this is based on. Doesn't make it any less of a tacked on shift in tone but there's precedent.