Hello:
My parents unwittingly promoted my lying! In the beginning, I was painfully honest and totally trusted my parents but, after about 4, I began to notice a strange phenomena where the older kids, who LIED a lot, were punished way less than those who told the truth, like me, AND they often got rewards! I tried it out a few times and, sure enough, my parents went for my Lies and I was not hit, spanked, threatened, humiliated or punished! I soon became as good a liar as all the other "smart" kids and found myself in the wonderland of getting away with bad behavior while also rarely being painfully punished like it used to be. The more I lied, the less respect and trust I had for my parents. LOL, now that I am old enough to see it, I realize that my own parents conditioned me to become a successful LIAR because they actually wanted me to be one! I now see that they preferred lies to embarrassing truths because it was easier on them! If I was honest about breaking something or misbehaving, they had to devise a punishment and carry it out (in secret) while suffering the shame of their own parental inadequacies BUT if I lied, they could happily accept it and just go about their business with little or no shame over their own parental failures. MY lying was a win-win for my parents and me so I became quite expert at it which unfortunately caused me a lot of trouble later in life.
It's interesting for me to see how few parents will never admit that they set their own kids up to be: liars, thieves, rebellious, corrupt, sneaky and naughty in many ways with inadequate or dishonest parenting that passes as OK and normal. My parents would never have admitted that their parental FAILURES influenced us boys to become very, very corrupt behind their backs while looking real noble to their faces.
If I discovered that my kid was becoming a chronic liar, I'd first of all try to figure out why the kid is doing that and then I'd find some way to help CORRECT my own parenting mistakes before it gets any worse and before I'd begin punishing my kid for doing something that I have unwittingly promoted.
jim