Run by five friends, Grumpy Dog is a neighborhood hot dog shop on Xiangyang Nan Lu. The menu is short but sharp: gourmet hot dogs, sides like roasted red pepper hummus on toasted brioche, and cucumber salad topped with dried fish (...this may not be a place for vegetarians). Sausages and buns come from vendors, but everything else — sauces, toppings, snacks — is prepped in-house. The flavor profile draws from Taipei with some light Japanese influence. They also have different flavors of ice cream (38rmb) and a Taipei coconut ice-cream burrito w/ crushed peanuts (28rmb). Not a far walk from Yongkang, on Xiangyang Nan Lu, in a space that used to be a convenience store. The shop is compact and casual with five tables inside and two smaller tables outside. Somewhere kind of between kiosk and café. There is a counter, or bar style seating, but there's a waiter to take your order. So while "hot dogs" don't exactly say gourmet, the design and service do.