“Prisoners don’t have geese running around the donjon-keep to pull pens out of, you muggins. They always make their pens out of the hardest, toughest, troublesomest piece of old brass candlestick or something like that they can get their hands on; and it takes them weeks and weeks and months and months to file it out, too, because they’ve got to do it by rubbing it on the wall. They wouldn’t use a goose-quill if they had it. It ain’t regular.”