Failed CON save vs addiction?

I’ve never been a smoker, but I think I understand some of the addiction–because I’ve been a Dungeons & Dragons player. Smokers tell me that the addiction isn’t so much about the taste or the chemical stimulation; it’s the ritual and the social aspects that are harder to shake off. So it is with D&D. I can go for years without playing, but like with smoking, you’re always in recovery. Every time I step in a comic book store, there’s the risk that a group will be playing in a side room.