I came home from work early one afternoon this week. Just south of Leicester station I saw a London Underground train. Presumably it was on its way to or from the Litchurch Lane Works in Derby.
This train had a pair of class 20 locomotives (a rare sight themselves these days) and a buffer wagon at either end, but there was still something moving about seeing a tube train in such circumstances.
It reminded me of a pit pony allowed up from the depths for a short while to frolic in a sunlit meadow.
Later. Judging by later reports, this train was on its way to the test track at Old Dalby near Melton Mowbray.