Georgina's question:
But I would like to know if you had touched down on your engine pods - and realised it quickly - would going to reverse thrust have stopped the beast?
I've not flown an Airbus, but I'd be very surprised if you didn't need the "weight-on-wheels" switch (air/ground logic) to be made before the reverse will deploy, most lilkely also thrust levers at idle. That switch would be on the wheels and hence not available in a gear-up touchdown.
Revert to previous advice - "close the thrust levers and hang on!"