It's getting a bit beyond me now, Baldric, but faced with a choice between the Cipster's hobby and your stamp collection, I'd be off to the Ivy.
I still think everyone is missing the point. This is a paid job for these guys and they must abide by their own organisation's set of rules. I work in an industry where a 60 hour working week is the norm. If you show up drunk, even once, you will get the ass. It's that simple, but that's spelt out when you walk in the door and everyone knows what they are signing up for. I haven't seen anyone violate that rule yet.
A rugby player, compared to your average office worker, has about 20-25 hours of 'work time' a week. The super rugby season (if you don't get into the finals) is 16 weeks A YEAR. If you can't hold yourself together for that amount of time, then you have a serious problem.
So once again, I say buckle up or gtfo. It's not that it's illegal to drink, it's not that I don't appreciate his need to enjoy himself, but he knew the rules when he signed up. If you can't do those things in your own time, then he can do so while he's lining up to get his dole check.