Like a crass Jersey-bred Jerry Seinfeld in the grip of Adderall, Dov Davidoff is an observational comic with a manic, ADD-addled edge. His stand-up act jumps wildly from one topic to another -- losing his virginity to a prostitute at age 12, surly Starbucks employees, tactics for outcrazying vagrants on the street -- without it becoming a completely scattered and tangential free-for-all.