Careless dad did not pull the keys off the two-year-old son started the car trouble yesterday afternoon at 1:40 PM, Zhejiang resuscitation room, Yiwu Chouzhou hospital, a more than 40 year old woman tearful to ask a doctor for help. She was carrying a two year old son, and her medical staff were checking her husband. Her husband, 43 years old, surnamed Xie, Anhui people, opened a small truck in Yiwu to deliver goods. More than 1 noon yesterday, a solution for a unloading point delivery, the wife and son go to the same car. When the goods are delivered, a car is stopped and the wife jumps off the cab to find the water at the unloading point and unload the cargo. Two year old son sitting in the driver’s cab, watching TV drama with a mobile phone, do not want to get off the car, the couple did not force. After a while, something unexpected happened, only to hear the sound of "bang", and the car started. The couple realized that when they got off the train, they forgot to pull out the key, but the son actually twisted the key with his hand and started the car. The car just stopped on a downgrade, and it was going down, and there was a tree ahead. He opened the door to the side of the car, left leg and upper body stepped into the door, and he quickly pulled out the key. But at the moment the brakes, his right leg was the car hit the tree. After the diagnosis of a doctor, the right medial femoral condyle and fibular head, open fracture, medical staff for his injury emergency treatment, after a solution was admitted to hospital for further treatment.