Check it out.

This one works best if you've seen exhibit A, which can be viewed on the Web at: adage.com/vidt?pld=. It's a public service ad against pot-smoking that ran on MTV Canada and left people agape. Three very handsome, indeed hot, young men are sitting in a car smoking a bong. Obviously wasted, the two in the front seat spontaneously lean toward one another, lock lips, and kiss passionately for seconds, as the guy in the back looks on in horror and confusion and finally asks, "But aren't you guys--brothers?" And up flashes the message: "If you're high, just make sure you don't drive." So it isn't the gay kiss that we're supposed to be horrified by; it's the fact that the two guys kissing are brothers! How gratuitously weird is that? Still, it's not hard to guess what happened here. In the government's never-ending campaign to convince you that smoking pot makes you do wild and idiotic things, some PSA guy had this brilliant idea: link pot-smoking with the image of two guys kissing, still icky for many viewers! But no, you can't do that, because a lot of viewers won't get it: they'll just assume the guys are boyfriends (or tricks, or whatever), and won't be suitably horrified. And some viewers won't be horrified at all, as it's a pretty hot kiss. So they decided to add the bit about being brothers. Maybe it's a sign of progress that in order to turn you against pot they have to raise the ante all the way up to gay incest. Anyway, they ended up producing what has to be the closest a PSA has ever come to gay porn.