Re: Help! Blackbelts vs Sensei!
If someone's verbal description doesn't match their own posture, you *could* try asking them to show you what they're trying to describe, and see if they discover the inconsistencies on their own. And watch to see whether they're comfortable with the self-discovery that could happen there. If they're not comfortable with it, that may be an important thing to know.
Of course the key thing is to ask in a manner that is genuinely curious, and has no hint of "Aha! Gotcha!" If you can't do that, then forget this suggestion, and talk to Sensei about what you observe.