I have shared the Monty Hall problem with people many times, and have always made explicit that the host knows which door the prize is behind and thus always in

I have shared the Monty Hall problem with people many times, and have always made explicit that the host knows which door the prize is behind and thus always intentionally choses a 'losing' door. It has not yet stopped anyone I have tried it with from making the error that it doesn't matter whether they stick or twist.