Water polo is already an insane sport. I struggle enough to swim without playing sports while doing it, and furthermore, my friend who played water polo in college told me a story about somebody getting his balls squeezed by an opponent underwater and the ref couldn't call a foul because he didn't see it.
However, it differs from regular polo in that you're not riding something. Canoe polo, a real variant on water polo, attempts to solve that. However, here's the problem: it's a bunch of dudes riding canoes and trying to play sports. As our friends on Highly Questionable found, this is sometimes a bad idea:
We like Lebatard's point, though: GET THIS ON TV, HERE IN AMERICA, NOW.
And we have just committed to never ever play canoe polo! (Note: was not actually going to play canoe polo to begin with.)