I don't know anything about the Catholic angle, so I'm going to consider that a wash. I wish he'd came to me on his own, but he's still done something very hard.
The honest truth is that, unless I felt his parents were really against it, I would probably have been willing to buy a couple of beers so Randy could sample it.
With those things in mind, I think I'm going to ask Randy what he thinks should happen. I'm thinking that this is serious enough (the theft and the drinking) that a good, otk session with the hairbrush would be called for, or maybe even a mild switching.
What I am sure of is that he and I are going to figure this out now. It's serious enough I'll need to let his parents know, but I want them to know it's dealt with, and that I'm satisfied. If I think they'll still punish, I'll have to rethink some or all of the above.