A parade of puzzled men in overalls

It never rains, but it pours.

Now my bathroom is in need of attention. I'm no Mr Fix-It, but even I can see that if tiles start to lift off moisture-proof walls then there might be a problem.

I have been visited by a whole bevy of handymen, and the pattern is now familiar. Look puzzled, tap the walls, check for damp, mutter, look worried, leave.

Apparently my walls are dry. There is no damp. There is no reason for the tiles to be extracting themselves, shoulder-like, from their allocated sockets. But they are.

The game is going through the ranks of the housing association. The owner's husband asks the caretaker. The caretaker asks the repairman. The repairman asks the owner's husband. Much scratching of heads all round.

I see it now. Mr Blue Overalls, in the bathroom, with a pile of loose masonry.