He didn't seem able to remember any other two words.

I didn't care, only his noise began to worry me.

'Shut up,' I said.

At that he collected himself for a confounded screech.

'You killed him! You killed him!' 'No,' I shouted, 'but I will kill you directly.' I jumped up, and he fell backwards over a thwart with an awful loud thump.
I don't know why.