Comedians John Mulaney and Nick Kroll have both given us more entertaining work than George and Gil, the two crotchety Upper West Side-residing characters moaning in a diner they’ve performed as for close to a decade. But sometimes that’s what you have to work with if you’re missing Kroll Show and want to keep Mulaney from creating another fake Seinfeld. The show originated as a sketch of the same name, in which the two fellas staked out a New York diner and filmed a public access channel-style prank show where customers received sandwiches with egregious amounts of tuna, followed by aggressive cackling. This hardly seems like something to build a full-length play around. Still, Kroll and Mulaney have spent part of their promotional press time confusing Bachelor watchers by advising this season’s contestant in costume and refusing to break character during most press conferences. If you’re drawn to the premise for its sheer chutzpah, just make sure to get a seat far enough from the stage in case some albacore goes flying. Nick Kroll and John Mulaney perform at 7:30 p.m. at the Warner Theatre, 513 13th St. NW. $30. (202) 783-4000. warnertheatre.com.