Very short, but odd for the passengers diversion at Shipley in 1988. Failed train blocking the then only main line (Leeds-Skipton) platform. Loco hauled Leeds-Carlisle arrives outside the station, after a conflab with the signalman, train runs into the Bradford-Ilkley platform (bi-di running had just been installed for London-BDQ trains). Engine hooked off, runs around train, propells train, passengers still on board, over the cross over at Bradford Junction (now Shipley South) and then charges off through the Bradford-Keighley platform and away to Carlisle. Ten minutes all in, driver and signalmen knew what they were doing!
Few weeks later, Carlisle-Leeds (class 47 hauled) comes to a halt on then through line at Shipley. Problem at Thackley tunnel, driver speaks to signalman at Guiseley Jn. As this is going on guard leans out of window at rear of train and asks signalman at Bingley Jn what's going on. 'You're off via Ilkley and RR' comes the reply. The guard said 'I don't sign it' just as the signal cleared and the train set off! Despite the route knowledge issues the train did RR at Ilkley and eventually got to Leeds.
Grand Central often do an early Sunday BDI-Whitehall curve (reverse), run through Wakefield Westgate, down the single line to Wakefield Kirkgate. From memory I think that train also went to KGX via the joint line!