Strange Thoughts of a Strange Man

I have been harbouring a suspicion for quite some time that the space behind the hot water tank is the legendary lost graveyard of my socks. I lose single socks every so often and there is nowhere else for them to go.

This morning I put some underwear in the airing cupboard and I saw a pair of boxers slip off the shelf and fall behind the tank. I managed to fish them out but in the process found more pair of pants and a sock. How to even see behind the tank is a puzzle. How to get out whatever I find behind the thing is another.