Fight Ambiguity

Alright, listen up, you silly goose. You're telling me your dad said "don't fight", right? And you're over here scratching your head wondering if that means not to punch each other or not to yell? Clearly, you are not the sharpest tool in the shed. It's a play on words because the word 'fight' can mean both physical fighting and arguing verbally. What are you, five? Anyway, the humor comes from taking the literally ambiguous meaning to an extreme.