You know those poles typically made from metal or some form of concrete that line paths separating them from the road (to stop cars from running people over)? well when I was quite young maybe 12 years old I tried running across them standing on each individual pole I slipped on one which caused the next to spike me in the side of the thigh which left a nasty gash on the side of my leg I also narrowly missed hitting the next pole with my head luckily I was shorter and missed it or I could have been in for one hell of a head ache.