“ I have heard (from an Afghan man that I know) that in Afghanistan, they will construct kites, and then tie or tape pieces of glass and shards of pottery to the kite-strings and have 'kite-battles', where they try to use the sharp shards on their kite-strings to cut the opponent's strings.”
“ A cave with weapons sunken into the walls, blades sticking out of the floor and ceiling, and so on. Possibly, any weapon used in it could be torn out of the hand and sink into the stone.”