Don't get me wrong, that stuff's infuriatiing. Its just also pretty common so I kinda got used to it. The kid'll probably be fine, he'd likely pass out well before the alcohol poisoning got serious. Especially if he was working at the time. Judging by your concerns I'd say he didn't get hurt much while drunk and thus will almost certainly be ok. Who knows, maybe they learned a valuable lesson on alcohol in the meantime.