Dirty Rat
The Dirty Rat is a Dwarf pub in Ankh-Morpork. Its precise location is not specified in Raising Steam, although it might be a safe bet to suppose it's in the Quarry Lane area. With the covert aid of the grag Ardent, it becomes a hot-bed of drink-fuelled disaffection. At least, until a barman whose antennae are twanging with the word trouble calls time.