"Right... but I'm not sure if this is the sort of programming I use. I don't see any arrows, I see... ummm...."

He tilted his head a bit as he thought about it. "Things like... 'Insufficient privileges to access'... some... file...?" He didn't look up as he said it, absently fiddling with one of the little bits of paper with an arrow on it. "Or... or 'No such file or directory' when something is supposed to be there...?"