Parkour fails can be the most painful thing in existence!
Parkour is a french word, naming a discipline that developed from military training to avoid obstacles. It can be practiced alone without any additional equipment needed. It takes a while to became a pro and master this technique. Going all the way to pro has its price however and it is paid in bruises and cracking bones. Sometimes demolishing a whole jaw or a head fracture. Parkour fails can be life threatening and can end with serious consequences. Be careful and patient, and you might learn how to do it properly!