How often to we see parents threaten children with consequences for behavior and then never follow through with the threat? These parents are breaking the Commandment to not bear false witness.
One time my wife and I were at the car show and I approached a car with a little kid (maybe 5 years old) sitting in the driver seat. Parents nowhere to be seen. I told him that he had to get out now, as I wanted to sit in the car. He said, “You're not the boss, I don't have to and I'll get out when I want.” My wife saw the look of death in my eyes and came running around the car to escort me away.
I held my ground and in as loud a voice as I could asked, “Who's brat is this, get him out of the car.” The parents saw the look in my eye too and came running to get their kid to safety. I am an easy going guy, but there are times when I've had enough.