Excuses excuses .... no seriously, that is bad luck, backs are so unpredictable. Best wishes for a prompt recovery.

My excuse is that part of the ceiling in the "gym" has come down - it would seem we have an ultra slow leak in a pipe to an upstairs room - it has probably been brewing for years - the leak is so slow there has not yet been a single drop of water on the floor since it happened.

Such fun. And sorting out the relevant tradesmen adds to the enjoyment.