That reminds me of a classic Billy Connolly tale about behaviour of opposing team "fans" at a big football match, the gist being one lot monstering a couple of "innocent" lads by taking their shoes and sending them bare-foot, to get hot drinks. It ends:
"I'll stop pi--ing in their Bovril when they stop sh--ting in our boots".
Workshop / building-site humour is sometimes quite "creative"; tools "super-glued" in strange places was a standard one deployed on the apprentices and "new chaps".
It never seemed to get too far out of hand: too many REAL hazards, like spearing down a 20 storey lift shaft for starters.
