Holding up the furniture
I've had that as well.
Early 1990s in Hong Kong. Company had moved into a new set of offices which had been wired with floor networking in conduits that had been concreted over. My first job was finding the outlet points that had been left and wiring in the socket plates.
All of the findable sockets done, and continuity continued to insist there was at least another one somewhere. Eventually found one behind a cupboard - that was easy enough, and then the last one was underneath the display tables in the reception area.
Crawling under the table I found a table leg over the corner of the outlet box. Ok, so I raised my shoulders slightly to reduce the weight of the table and punched the bottom of the leg to shift it a half a centimetre - at which point the whole leg fell out leaving me holding the entire setup on my shoulders.