Hard to say, but as a mother of 3 boys, all of whom were brilliant little brats and one who was a master manipulator, I don't think she knew. Maybe the grandmother did, but not your mom. Unless she was much different than I was. I took great pride in knowing my kids couldn't pull anything over on me and letting them know it too. They couldn't run shenanigans on me, I invented the shenanigans, LOL