Two o'clock in the morning . Wilf appears by the side of the bed . Usually he barks when he wants to be let out but this morning he's wandered up in the dark from the front door to find me . He gently nudges me with his nose . An almost apologetic look on his face . '' I didn't want to wake you but I really need to go out ". The first time this has ever happened. Afterwards he can't settle . More changes on the way ?