He should dress that child more appropriately.
That reminded me of this: How many 5 year olds could you beat in a fight?
Apparently, even though I'm old, slow and out of shape my willingness to fight dirty upped my score quite a bit. For example, one of the questions I answered in the affirmative was,
"During the fight, would you feel morally comfortable picking up a child and using him/her as a weapon to throw at other children?"