Wasn't there a big deal in Palmer Lake several years back where they were doing this in a bar, and they called in the SWAT team or something?
Yeah.. here we go: http://www.strike-the-root.com/51/langr/langr2.html
Palmer Lake, Colorado, April 26, 2005--Local law enforcement agents burst into Guadala Jarra restaurant in Palmer Lake, training their already-drawn guns onto the heads of the sea of criminals seated at the tables. Laser sighting allowed them to train red dots on the points at which their bullets would penetrate the skulls of the dangerous occupants of the restaurant. Police officials barked out orders to the restaurant, and managed to keep the crowd at bay by threatening to splatter brains all over the poker cards and chips on the tables.
Yeah, I know that's a bit dramatic, but the story is there.