I think the only lying I did in high school was of the "we said we went to a movie instead of admitting to going parking" variety. Even *I* couldn't resist when given a choice between raging teen hormones and the whole truth.

But, seriously, beyond that, even back then I just didn't lie.
You're right about the impulse control with DS7. He is the one who learned a rule even at, like, 8mos and then never broke it. It wasn't ever about impulse with him, it was about understanding. DS4 has always been much more impulsive. Good call there.
But I'm really convinced that DS7 just doesn't lie. Even when he could totally get away with it, he tattles on himself. When someone questions his story, he looks hurt and annoyed and disgusted and says, "I DON'T lie!" as if it's the most offensive, repulsive idea anyone has ever come up with. Seriously, the kid is not an actor. He just REALLY means it! He does NOT lie.
It sure made life easy. Time to adjust...
