It was just a few short weeks ago when we were in London for my old girl’s 91st birthday. Everything then was normal. The Tube was packed and the streets thronged with kids, shoppers and tourists. As we’d got into town early, we took a stroll around the magnificent Natural History Museum in South Kensington to gawp at the long-extinct, alongside the mass ranks of over-excited scouts. Little did I know we might be going the way of the dodo ourselves.