She's finally called. Great relief. In the nick of time, just as I was leaving but before I made a tw*t of myself in public with my plague proof costume.
Which consisted of a white B&Q disposable hooded overall, two Sainsburys carrier bags secured round the ankles with elastic bands to cover my shoes, a scarf wrapped round my lower face, a pair of red leather gloves, and my Notorious BIG style Versace sunglasses to keep me from touching my eyes.
My sore throat is definitely not my imagination, and in the last half hour I've just coughed for the first time.