text:  "Don't laugh here sir but can you tell us what you were doing sir last Christmas four years?" Of course he could not--and Mr Nailhim knew it or he never would have put the question; and the unlucky witness grew so confused in his attempt to find the matter out and in his guesses so confounded one Christmas with another that first he blushed and then he spoke and then he checked himself and spoke again just contradicting what he said before and looked at length as like a guilty man as any in the jail