Seriously, the kid is threatening to stab anything that comes near him. Even an 8-year old kid has enough strength to put a sharp object into your face or chest. But instead of smacking the kid down, and breaking his limb or getting stabbed in the struggle (which the kid would most likely try to do), he got some crap on his face that stung for a while and ended the situation without anyone getting hurt. Seems like it worked out okay to me.
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