Jinx

After reading Professor Gelman's blog article (College football, voting, and the law of large numbers), I thought about reactions I got when I told my friends about Columbia's Football performance this season by far. Out of three people I told, the two said, "OMG, they're doing so well now that I'm not going to see the games!" (Our Football team has been notoriously underperforming during our times as undergraduates...). I think this kind of "jinx" occurs quite frequently--we observe some consequential events, and think it's causal. But to what extent is it a "jinx", and what is actually causal? If college football games can actually affect elections (which "sounds" like a jinx to me), I don't see why not our other jinx are actually causal.