Re: Forget the risk of fire spreading through the holes in the wall
I lodged in a 1930s art deco house. No plaster board just a thing layer of plaster. Decided to put up some shelving and me and the landlord got through half a dozen masonry bits and his hammer drill before going and buying another hammer drill (as the old one was obviously shit) and finally got a hole deep enough for the first rawl plug, A handy man was called and he knocked on the door, asked what we wanted, said 'No, for some reason the houses here were made with 'blue' bricks and if you wanted to put up shelved you knocked off the plaster to find the mortar and fitted into that." So we pollyfillad over the rawl plug, got some standing shelving and watched Dr Strangelove knowing we were safe.