What jokes can only be understood by Sichuan and Chongqing people?

Before the opening of the Olympic Games, two Sichuanese traveled to Beijing and looked at the map in the car. A: "We will kill Tiananmen first, then Zhongnanhai ..." B: "If we want, we will kill all the way along the route you said." Unfortunately, it was reported by people in the same car. After getting off the bus, he was handed over to the public security organ, explaining the situation and being released after n hours. Party A and Party B came to Tiananmen Square and watched people coming and going. They were speechless. .......... Jia couldn't help saying, "Are you silent?" B: "You don't even open your mouth (gun), dare I open it?" As soon as the voice fell, it was handed over to the public security organs. A week later, the two walked out of the gate of the detention center. You look at me, I look at you. A said, "Leha, don't worry, all the bags are empty. Where can we get some bullets? " ..... The armed police at the gate rushed up and knocked them to the ground.