Such Manners

I took my son to an indoor play area this weekend. They had a mini "city" set up, with stuff like a pretend grocery store and lots of Little Tykes cars--the kind that the kid powers with their feet. When we first got there, I led my son to one of the cars, and another boy ran up, and pulled the car away, getting in it himself. I told my son that it was okay, that we could get in one of the other cars, and led him to a different car. (The parent of the little boy did scold him for stealing the car from my son.)

Later on, my son was opening the door to one of the cars to get in and the same boy ran up and jumped into the car. What does my son do? He told the little car thief, "Thank you." As the little boy runs away with the car, my son bent over, pointed, and laughed, as if it were the funniest thing to see the little boy going off with the car that he was about to play with.