The closest was probably a mountainbiking accident.

We were going along side a hill and to the right of us was a wall going down holding the earth up. Well there came an obstacle up which was a big roller to the right up the hill a bit and then down again to the ledge. The roller took a slight curve and you needed to curve back on the trail to not go over the ledge. I broke the first rule of mountainbiking and looked down the ledge which was like 3-4m high instead of ahead. Drove straight of it but somehow managed to grab a branch of a tree that was just above the ledge. My bike fell down and i just hung in the tree allowing me to safely drop down and carry the bike back up.

Nothing happened to me but i don't want to imagine what would have happened if i didn't grab that branch.