Fistfight! And fire extinguisher! PAN in Michocán comes to blows over Cocoa vs. Marko

I do not condone violence and even less to solve political conflicts. Yet the internal turmoil in PAN's state branch in Michoacán, where the party is divided over whether President Calderón's sister Luisa María "Cocoa" or Senator Marko Cortés should be its gubernatorial candidate for the November election, sounds like something out of a slapstick movie:

"[Marko's campaign coordinator] Eduardo Chavira Garcia came to the other end of the hall, where [Luisa María's coordinator] Mariano Torres stood,  and suddenly planted a coupled of blows to his face....Mariano Torres lost his balance and fell backward on a fire extinguisher, which got turned on and released powder over those cheering. Shoving ensued between supporters of two rival groups, but there were no more blows, although insults and threats.Members of the Presidential Guard, who constantly guard Luisa María Calderón, merely observed the scene and surrounded Cocoa."

(though El Universal reports the EMP guard intervened on behalf of Cocoa's supporters)

Refreshing to hear the PRD isn't the only party with unorthodox dispute mediation techniques.