It was on a warm christmas morning in 2016 my cousin Pato had stayed over at my home and we woke up energenit Pato and I have been training parkour for a couple of years on my backyard with a wooden vault box and a couple of mattresses We were determined to train that day We convinced my brother Gabriel to finally try parkour for his first time he agreed When we went down to train we taught him how to do a trick called Front Handspring on top of the vault box The trick involves getting past the box using his hands with a flip He was super nervous to try it but was able to land the trick on his first 2 attempts When we decided to record him hs third try then the fail happened He completely fell over his back and then his head Gabriel lasted a lot of time on the ground and the whole house heard the noice my father came running downstairs to us and got super angry with me for putting Gabriel to do advanced tricks without any training before Fortunately Gabriel didnt get injured just suffered a big hit After this he never tried parkour ever again