After working hard all summer mowing lawns, Mark was able to buy a bicycle. The next day he went to the garage to get the bicycle and go for a ride. He found the front wheel twisted out of shape so that the bicycle could not be ridden. Mark discovered that his younger brother, Tim, had taken the bicycle that morning without asking. Tim ran into a fire hydrant and twisted the wheel.

Mark grabbed his tennis racket and left the house. He hit the tennis balls against the wall of the garage for a long time. Then he went to his best friend and told him what had happened to his bicycle. Later that evening, Mark sat down with Tim for a talk. He told Tim how angry he was about what Tim had done. Tim agreed to use his allowance to get Mark’s bicycle fixed.