There are two men playing ping pong in a basement.  One of the players is wearing a black shirt and the other is a blue shirt.  There is a mattress leaning against the basement wall.  The players continue playing a smooth rally.  Then the person in black misses the shot.  They continue playing ping pong for a few more rounds.  The person in blue hits the ball in the net.  They continue playing more till the person in blue drops the ball on the ground.