One trick jackie and his peking opera school friends had, was dodging bus fares. They would climb or jump onto a moving bus hold on and jump off at their stop. Often also they would board the bus, sit on the top floor, and when the ticket inspector came to the top floor, they would climb out of the upper windows and jump out of the bus, such was their life as they were too poor and had no bus fare. It was not really a matter of art but a way of life for jackie in his youth.
Usually the person jumping from high place to lower place will do a rollover to reduce the impact on knees , but this guy doesn't even roll over and his knees take full impact . Don't know how much knee surgeries he has undergone 🤷🏻♂️