Explain how Dunny" got" Milo Papple?

Dunny threatened Milo and got him to back off..... it would forever be a sore spot.

It was now or never for me. “Milo,” I said “if you ever say that again I’ll get a great big cork and stick it up you, and then nobody’ll ever laugh at you again.” As I said this I walked menacingly towards him, and as soon as Milo backed away I knew I was the victor, for the moment. The joke about Milo and the cork was frugally husbanded by our collectors of funny sayings, and he was not allowed to forget it.