I was around 14, I was jumping an arab called Peppy. He cantered towards the jump, and decided to stop. I fell straight onto his neck and while I was in the air he changed his mind and decided to jump anyway - while I was sitting on his neck! I got over the jump alright and right after it he decided to stop again and give a big shake. There was no hope, and I ended up falling onto the ground and hurting my wrist. Quite funny that they shake was what got me off! I miss Peppy though, he was an always will be one of my favourite horses.