If memory serves correctly, on a certain British carrier aeroplane it was possible to lift a safety flap and operate an override button, with the landing gear UP button also pressed in. This would allow instant automatic landing gear retraction when the circuit protection relays detected oleo extension on take-off.
Which was probably OK when performance was limited, you were being flung of the front of one of HM's war canoes and there was only the briny several feet below.
But on a bumpy runway, would anyone risk 'automatic retraction'?
Good to see the excellent K-36 seat saving yet another pilot's life though. I gather it has a 97% success rate.