Don't let someone adopt Charles

Charles has been exceptionally ornery lately. Last night, he was at his worst. I told him I was tired of his behavior. William then said, "Don't let anyone adopt Charles." I asked if he wanted to keep Charles, and he said yes. After a few minutes, he was crying, afraid Charles would be adopted out. First, I have no idea where that idea even came from. Nothing like that has ever been said. Second, even as Charles was hitting and kicking William, William still wanted Charles to stay.