Among the huge effort planned to heal the ground floor and insert the required ventilation underneath, it was a great accomplishment to heal a part of the northern wall where, back in the days, the previous owners had installed a stone sink: this sink was very badly removed before we bought the building.
It all looked good before, didn't it? So at the time when they removed it I got really pissed off but NOW... as soon as I realized HOW they had installed it, I was really grateful to them for the removal so that it couldn't be used anymore to flush water.