(THEATER) Clowns battling in brutal slapstick, a diva who wants to make you cry "for the rest of your life," roadies trying to turn the theater into a heavy metal concert—Bloody Mess has all this and more. In their Seattle debut, UK-based Forced Entertainment packs different character types on one stage and explores the chaotic, funny, and frightening fallout as each competes to control the performance. (On the Boards, 100 W Roy St, 217-9888. Dec 8–11, $24, 8 pm.) BRENDAN KILEY