I recommend bringing your own stuff. Recently I brought a good yet cheap red wine I happen to like, some cognac, a small espresso machine and espresso (Brazilian), and some classy sparkling water. I put them in an out-of-the-way corner for the use of the cognoscenti (in this case, those who could congnosce what I was up to). It’s true an unwary person can get bombed on wine or cognac, but it’s unlikely when dumber, more alcoholic drinks are available. Once I have my little fortress set up, I issue forth periodically to enjoy the psychodrama. I don’t know if you can get away with this everywhere; in my case it was seen as just one more endearing eccentricity. (I’m ‘older’ so much that I do and say is seen as safely wicked.) Don’t I want a little sweet drink colored blue with an LED glowing in a fake ice cube? No.