At work, before I went home, I checked Facebook and saw that Claire's status update mentioned how cross she was and that there had better be wine available. I took the hint and offered her a choice of flavours involving blackcurrant. This bottle was the preferred option and seemed to do the trick. I was out at Airedale Symphony Orchestra when Claire opened it, and her Facebook status update that evening referred to "Comedy Exploding Wine". Apparently she had to mop up crab apple & blackcurrant froth twice. Most fizzy bottles only require this to be done the once.
I had a glass on my return and we have finished it tonight. It is unusual to have a bottle over Monday & Tuesday though not unknown. It is a fine bottle of wine: fruity and sharp. I may well make it again one day.