She took the jar out of the car and confronted her son.
Caught red-handed, he volleyed with the classic kid line: "Why are you going through my things? This is an invasion of my privacy."
Unprepared, unfortunately, my friend retreated into the "safety and consequences" speech that all kids get at one point in their lives. Some get it more often.
You know the basic elements of the speech: It's bad for you and if you get caught you'll be in a lot of trouble.
The trouble is that with the pot scenario, none of that is true. Oh, sure, pot is bad for you if you abuse it, but that's true of sugar and cheeseburgers, too. And, yes, I include driving while stoned as something that is bad for you.
As for the consequences, unless her son was carrying around enough to be considered a pot dealer, the penalties are not all that great anymore. Sure, it's still better — much better, actually — to stay away from smoking pot, but at least the laws no longer imprison the casual user.
And as I have written before, if someone put a gun to my head and told me to choose between having my kid smoke pot or drink alcohol, I'd choose the pot in a heartbeat.
But the core of my friend's discussion, and this one, is not about marijuana, it's about privacy.
What this weak parent failed to do was take action long before anything like the garage encounter could have occurred.
That action could be something as simple as the following conversation we have had with our kids and one that I always recommend to parents as soon as their kids become teens.
It goes like this: "As you get older, we expect you to accept more and more responsibilities. We expect you to go to school each day and work to get decent grades.
"But because you are a minor child, we are responsible for everything you do. If you break a neighbor's window, we are responsible for repairing it. You'll work to pay us back, of course.
"Because we carry the burden of your actions, we reserve the right to inspect anything that is in this house that belongs to you at any time. That includes your room, your car and your backpack. Everything.