Exercise 1: Dialogue

"You aren't seriously thinking about putting that trash in your body, are you?" a voice said from behind me.
I put down the package of Twinkies and turned around. It was Fed McDermot, a passing acquaintance from work. Pardon me?"
"I said, you aren't going to put that stuff in your body, are you?" he said.
"I fail to see how this is any of your business," I said.
"I'm just interested in your welfare, that's all. Do you know what they put in those things?"
"No," I said.
"Neither do I. That's the point."