The next time he does something like that, give yourself permission to get angry, but in quiet. But take the advice and don't engage in the jackassery. It's par for the course that they want to be the victim in the story. Believe me, it's hard to watch and feels "icky" to say the least.
But note your son didn't believe it. Why? Because it's not true. If you engage, you give fodder to the fire and make it harder for others, such as your son, to see what's really going on.
Always take the high road. It s*cks for a bit because it is so unfair, right? But let it go unengaged and he'll soon stop and find some other avenue. As Jack once mentioned, you need to pull those buttons out by the wires - one at a time. You'll find some that you didn't know were still there, but keep to the strategy and it'll die down sooner than if you engage.
Ever wonder why they get new friends and eschew the old ones? If you ask me, it's because the old ones tell them the truth, and the new ones don't know it - so they can't remind him he's lying. The only friends that stick around are the ones that either don't know, or don't care about that stuff.
MLCrs are notorious for rewriting history to suit their needs and feelings. Fact is of little relevance to their trip.
You'll be happier if you help to keep your S out of it. In the long run, it'll pay off and most likely your S will tell you that at a later date. Most kids are very perceptive. Yours are
Peace, AJ
"Our lives begin to end the day we become silent about things that matter" MLK Put the glass down... "Yesterday I was clever so I wanted to change the world Today I am wise, so I am changing myself."