Viviane is going to write her version but my version of this story is that I was in bed and heard a commotion on deck.  
I rise to find my father and Viviane in deep discussion as to the what was wrong with the mooring line which seemed to be trailing along side us too much.

It is true it took me a few minutes to get my bearings before we recognise that we were some 2 km form our mooring and were drifting offshore training a broken mooring. The right thing to do was to recover the 15 m of mooring line before we engaged the engine.

No hard done but it is true that if we had had one more drink we would have had not boat to come home to.