Not my most disturbing but a fun one. When I was a kid there was a building site near where I lived, on the weekends we used to break into the portakabins and steal all of the cigarettes they had. One day we discovered there's 9 ft by 5 ft polystyrene sheets and we'll, we had to steal them; so we did. We eventually had about a dozen and had them all piled up under a tree, jumping out of the tree and landing on the sheets. When we went in for more I was running out of the building site and fell flat on my face, looking down I saw a plank suck to my shoe, so I stood on the plank with 1 foot and pulled the other one off, met with a shit tonne I pain and my white converse turning red I hopped (literally) home. Basically a 3/4 inch nail went right through my foot XD felt like a dumbass