College sophomore Kitty O’Neill bursts out laughing as the short-form improv comedy group Kid Business engages her in a humorous sketch. The group performed its first show of the semester at the Cat in the Cream on Saturday. Kid Business is the first of the three on-campus improv comedy troupes to hold a show this semester and the only troupe not to welcome new members this spring. Oberlin students can look forward to a performance by one of the two long-form troupes, Primitive Streak, this Saturday at 9 p.m. in South Studios.