I suppose it depends on what are your goals, and how seriously you take it.

I've had a couple of fairly big meals out this weekend (no alcohol), but I'll be back to the healthy options this week, so no big deal.

Like Predator, I see guys who train hard Monday to Friday and then hit the pubs and clubs big time at the weekend - coming in and nursing hangovers in the sauna.

I have done my fair share of binge drinking in the past, but I can't see the point in doing all that hard work in the gym to negate its effects in my liver every weekend.