Challenge to any MP advocating no deal as a Brexit option: put your salary and pension up against your vote.

If the economy survives just fine, you get to keep them.

If it crashes, you forfeit both and have to resign as an MP.

Should separate those doing it for personal gain.

After all, if you're going to risk the future of the UK on a crazy gamble, you'd better risk your own future too.

(Remember, MPs aren't going to be the ones feeling the effects. Their high salary, perks and golden pension insulate them.)

Added: as was just suggested by @WeNeedEU it could be a symmetric deal: double their salary and pensions if the UK economy weathers no deal just fine, but they lose it all if the very widely predicted crash happens.