Lois: You broke her arm?
Malcolm: I was getting a ball.
Lois: You broke her arm for a ball?
Malcolm: No, I already had the ball, then I pushed her away.
Lois: You pushed her and broke her arm for a ball?
Hal: Was it a special ball, son?
Reese: It was just a flat old tennis ball. Sometimes I don't know why he does the things he does.