There are only two types of people in the world: those who have seen the Habit and those who need to see the Habit. This crew—which includes Stranger Genius John Osebold, theater impresario Mark Siano, and the too-seldom-seen but painfully hilarious David Swidler—writes fast, tightly woven, brain-vivifying comedy shows. Their sketches, some only a few seconds long, hook and loop into each other in ingenious ways, collectively amplifying the effect of any given joke. The Habit is silly, but it’s dexterous silliness. (Bathhouse Theater, 7312 W Green Lake Dr N,, 8 pm, $19, through Dec 1)