This is just my two cents.
During my first cycle years ago, which had D-Bol in it.. i spent the majority of the time binge drinking and partying almost everyday. I got huge as fuuuuuuuck.. and not in a good way. I do not advice this at all. But, even with the steroids and dbol, I did not have any problems with my liver that I knew of. and the only support I was running was milk thistle.
So to sum this up to eliminate any type of confusion about the point I am trying to make. By no means do I support alcohol use while on cycle.. but I don't think drinking a time or two is going to effect you that much. I am sure there are plenty of weekend warriors that are on steroids and orals that go out and binge drink every weekend that are fine.