Bad boy?

My son went to the aid of a damsel in distress, but being somewhat alcohol fuelled, had misjudged the situation, got a thump in the mouth, (not from the girl, I hasten to add) and sadly, thumped back, without thinking about the consequences of his actions! The upshot of this is a boxer's fracture, we think, but failing that a severely swollen hand! Not good for an apprentice motor mechanic, who is right handed...a painful week ahead, I fear!