Last night, when I was taking a bus, something unusual happened. The bus had left a bus stop and stopped for waiting for a traffic light to turn green. Meanwhile, an old man wanted to take the bus, so he gave the bus a big punch to notice the bus driver. The bus driver did not open the door for him to get on because it was against the regulation. The old man did not give up, and he stood before the bus to threaten the bus driver to let him get on. The bus driver none the less changed his mind, and maybe he called the police to deal with this situation. The bus stopped there for approximately ten minutes, and some of the passengers went to the front to see the insane behavior of the old man. Finally, four policemen came there to drag the old man away, so the bus could get away from the disturbance of the old man, making the standoff come to an end.