Negative Approach

"Can you do me a copy of this photograph, please?"
"No."
"I have the negative."
"The answer is still no."
"Why not?"
"Because I say I can't do it."
"Do you develop photographs?"
"Yes."
"But you don't do copies?"
"Yes."
"Yes you do or yes you don't?"
"Yes."
"What?"
"I said yes. It's not that difficult, is it?"
"I'll just go somewhere else then."
"No."
"No, what?"
"..."
"You said no?"
"Yes."
"Are you as confused as I am?"
"No."