Boards
Classic mishaps (Head stuck in railings, slipping on banana skins etc)
Somethings clearly only happen in The Beano or in slapstick comedies. Or do they?
Some bigger boys dangled my Dad from some railings by his braces when he was a kid.
Closest I can remember is when I was going to work I fell over a bench whilst walking and reading in a crowd at Fenchurch St station. Really fucking hurt.