your example of the also and the pub is spot on and highlights an important part of the "compulsive behaviour" that I have founds usually invisible to others. I recall having to convince people that I did indeed have a problem (with drugs,alcohol). One of the things that I was aware of and scared of was exactly that - once I started, no matter where or how a multi-day bender was always on the cards. it often didn't end up that way, but that was as much chance as anything else.