When I was a more or less typical no-name college kid, I spent many nights in bars underage. I had plenty of mornings I missed because of hangovers, and I got to know a few toilet bowls on a face-to-face basis, too. Classes skipped because some buddies decided to get a case of beer and so on. But on the few occasions when I had a chance to engage with a group of folks who I hoped would become my professional peers, I kept it straight. Job fairs, volunteer opportunities, meet an HR rep, and so on: I stayed sober for a few extra hours, even on the weekend. I did this even when I was 18 and 19. I don't see his drinking as a big deal. I see the inability to identify a time when he should abstain for 36 hours as a bigger deal.