Obsessions: who needs them?

Are they even useful to our life? A lot of people i know, are obsessed with stuff: football, food, sex, cars, nationalism, religion, cleanliness. I believe that nothing is worth obsessing about. A healthy interest, can be a good characteristic and can even make a person more interesting. Especially if said person has many different things they are interested in.

Recently, i was witness to the excessive obsession with football of some "fans". I say "fans", because i cannot for the world understand how can you be a fan and go to a stadium and throw rocks, glass, bottles and other similar articles to other people watching a game! Are fans allowed to break glass store windows? Are fans allowed to sound-pollute the whole downtown, just because their team won? Can't fans celebrate in a quiet, dignified, mature way?

Religious obsession can also be disturbing, to say the least. I'm not about to take sides, but, with the possible exception of Buddhism, all religions have a cluster of extremists that wreck havoc around the globe, thinking it's their duty to do so. Why exactly is it difficult to just sit around a table and discuss your differences and find middle ground? I do realized that there can be situations that one, or both, sides, do not have the will to find a solution to any given situation. But is the most suitable reaction a violent one? (ok, this is totally a different subject, but, yes, obsessions do tend to steer people towards violence and extremism)

Having said all that, (and i could say a lot more) can somebody please explain, why the fuck am i still obsessed with that one person????