Hi All,
Wanted some advice in to what people think these are, and whether my upstairs neighbour is causing them. They’re round “holes” and I haven’t noticed them before, but this weekend noticed several in each of the upstairs rooms. My upstairs neighbour is having work done and obviously if they’re causing it I’m going to speak to them but I don’t want to confront them about it if I’ve just been ridiculously unobservant and they’ve always been there...
Anyone seen anything similar / know what they are? (Photo should be attached...)