The ever-unwinding track of life wears many people to the bone. When life is just too tough, one of the best solutions is a good drink, and that’s not new. For many years, when life gets too hard for a particular person, a bar has appeared to whisk their troubles away. This bar comes only to those who need it, so they come to the bar with their troubles and leave happy. Or maybe they stick around for a few more drinks; they can stay as long as they want. There’s always someone inside to talk to. The bartender is different for everyone depending on who they need. Even the bar itself changes for the interests of its patrons.
It can really be any point in time and anywhere. It could be anything from a Star Wars cantina situation to a fantasy tavern or inn. Try to be thematic with whatever you choose. Alcohol is usually going to be the main trigger for transformations, but don't think that it has to be. Be creative and use your own judgement to decide how things should happen.