Stacker the pilot has a lead that pulls the key out fo the ignition when they eject, just like if you fall off of a jet ski. Hope that helps.
See... This is why we have a military. It's all that defence R&D that comes up with devices like this that filter down to the public and ensure we don't have jet skis and boats scooting willy-nilly about our lakes.
I bet the one in the Tornado cost a few hundred grand though...
