I could have equalled it a few years ago but I knew about it. When we moved to this house in about 1985, the floor level kitchen cupboard backs didnt reach to the top of the cupboard and there was a gap and a space between the back of the cupboard and the wall. before I realised what had happened, several packet of things like custard and stuffing had managed to slide off the top of the food stored in there and post themselves down the gap. There was nothing to be done short of ripping the cupboard off the was so we hoped that mice didn’t move in and left well alone. Fast forward to 2009 when we had a new kitchen, and the fitters found the stash undamaged and looking like new.