Relevant Hogfather (1996) quote:

Biers, and undead bar where everybody knows your name

Susan didn’t like Biers but she went there anyway, when the pressure of being normal got too much. Biers, despite the smell and the drink and the company, had one important virtue. In Biers no one took any notice. Of anything. Hogswatch was traditionally supposed to be a time for families but the people who drank in Biers probably didn’t have families; some of them looked as though they might have had litters, or clutches. Some of them looked as though they’d probably eaten their relatives, or at least someone’s relatives. Biers was where the undead drank. And when Igor the barman was asked for a Bloody Mary, he didn’t mix a metaphor. The regular customers didn’t ask questions, and not only because some of them found anything above a growl hard to articulate. None of them was in the answers business. Everyone in Biers drank alone, even when they were in groups. Or packs.