Perhaps it has to do with a certain expectation of your own behavior in that environment? From my own experience if I'm drinking with friends at one of our pla

Perhaps it has to do with a certain expectation of your own behavior in that environment? From my own experience if I'm drinking with friends at one of our places I have no problem staying 'responsibly inebriated'. I don't even have to try really, it's just how I behave in that setting. However, when I go out to a bar with friends I tend to drink too much. I think the change in setting and context influences my behavior. I think that part of it is that I have this feeling that I have to make the night 'worth it' in a sense. I don't go out a lot so it's sort of like trying to get all my fun in at once (which ends up being not so fun). It also feels more natural to always have a drink in hand at a bar... or perhaps I feel uncomfortable without a drink a in hand, I'm not sure. Next time I go out I'll try and keep these possible biases in mind and see how my behavior changes.