There is also the game aspect of it. If you corner them on lies, detect their tells, unravel their untruths, and sometimes or often "win", are you successful in curtailing or are you putting them right at the place of challenge where maximum learning takes place, and thus are training them to improve their ability and look for opportunities to engage in the thrill of that competition?
I
strongly suspect that this is at the heart of it for DD. This is something she is just plain GREAT at naturally, and (sadly) something that she has felt strongly motivated to work on improving.
Like UM, I went through a period with DD where she could make me doubt my own sanity in one of those conversations. I've moved past it now, and I just shut it down with "
I know you're lying,
you know you're lying, we're done talking about it."
