Neil Hamburger is “America's Funnyman” not by reputation, but rather by self-determination. In fact, Hamburger is often considered the world's worst stand-up comedian. Making another stop in Houston this weekend, Hamburger is rarely booked by comedy venues like The Improv or Laff Stop; we gather his brand of humor is hard to sell to the masses demanding Dane Cooks and Carlos Mencias. In fact, if there is an antithetical personification to either Dane Cook or......