He said "I'll punch your head!" I said "Whose?" He said "Yours!"
I said "Mine?" He said "Yes!" I said "Oh?"
He said "Want a fight?" I said "Who?" He said "You!"
I said "Me?" He said "Yes!" I said "No!"
So we then came to words, he said "You're a cad!"
I said "Cad?" He said "Yes!" I said "Who?"
He said "Who?" I said "Yes." He said "You!" I said "Oh!"
So of course then I knew.