We all have that one friend who can't hold their liquor or ends up always drinking too much, leaving you and the rest of your group on babysitting duty.
There's not much you can do with a stumbling, bumbling, muttering drunk except trying to get some water down their throat to help mitigate the horror that will be their hangover the following morning. Then you get them out of the cold and plop them down on a couch or bed and call it a night.
And although that sounds like drunk-friend-caretaking 101, and it is, that last bit is where things get tricky. Because depending on just how smashed your pal is, leaving them to "sleep it off" could ultimately kill them.