Some of you may remember (early 70's IIRC) a story in Air Clues of a storeman who was badly injured using 'incorrect' equipment in 'the stores'. It seemed this particular unit had some high level shelves, but had fallen foul of the 'not entitled' edict when asking for a ladder to reach the upper levels; however, having been a Bomber Command station of long standing, it still had a stock of Lancaster boarding ladders, so an enterprising storeman had started using one, which had eventually become normal practice in the stores. Now these ladders had steel feet (very slippery) and a small hook at the top to go over the door rim. Of course, along came a new young airman who was tasked to get something off the top shelf - and you know where this is going.
Needless to say after the subsequent BoI the unit solved the lack of correct ladder by ordering a whole load of very expensive 'low level' shelving and then having to move to a larger building to get it all in.