Oh man I love playing the heel to get the point across. I just love being as obviously wrong as possible so that they are the ones telling me what the right thing is. Doesn't always work though, sometimes they agree with me and in those cases all you can say is "And you don't see a problem with that?" :dont-laugh:

The best part about this system is that even if you misread them, and they never had the wrong idea, it's the exact same conclusion as if they were wrong: They conclude feeling like a hero.