1. In a tenament house we renovated - A cupboard that had been filled with bricks from a knocked down wall, then boarded up. We needed to replace damaged plasterboard and uncovered the cupboard, emptying it was akin to playing a giant game of jenga. Turned out to be a lovely cupboard though and shelved to fit cookery books and our boiler went under them... the bricks are still sitting in the back court (we never got round to clearing them up



2. stripping wallpaper in our current house, to find out why the wall sounded very hollow. Found MDF had been used to box something in, took down MDF and found plastic backed hardboard (a kind of fake wood panneling) had be used to box something in... so took off the hardboard and found a waterfall running down the inside wall everytime it rained. It would have been cheaper and simpler to mend the guttering, what a bunch of dafties
