When I was in my late ****s I joined the Church of Satan as a fairly lame kind of 'rebel' move to shock folk (I was in a skater-punk type band and thought it made me cool/weird/interesting)

As I've gotten older I've actually grown to genuinely buy into their general philosophy and outlook, whilst not going as far as rituals or attending gatherings and what not - more out of laziness than anything else. They've done a pretty succinct job of describing what I think as an atheist. Their FAQ is worth a read.

Also how could anyone not admire the 11th rule?
11.When walking in open territory, bother no one. If someone bothers you, ask him to stop. If he does not stop, destroy him.