Yesterday, Secondborn got into a bit more trouble than usual. He's three years old, so a certain a mount of getting into trouble is to be expected. Secondborn, however, has a positive talent for it.
This particular incident, and the mess and fuss it created, led Firstborn (age 7) to wonder if maybe we couldn't just get rid of his younger brother. Their mother, the Beautiful Woman, took some time to explain to Firstborn that no, we weren't going to get rid of Secondborn. In fact, she added, someday Firstborn would be very glad that he had a brother.
It was at this precise moment that Secondborn threw a rock and hit Firstborn in the head.
Somehow, I don't think Firstborn is entirely convinced by his mother's argument.