Unfortunately today many young people don't know the moral of a pig in a poke, so please let me explain. Years ago it was common, particularly in the South, for people to take a sack with them to carry things in. If they bought or found something they wanted, they would poke it into the sack. Thus the term poke sack or just poke for short. Now a swindler might try to sell someone a pig in a poke. They would show the poke with something moving about inside it. They would say that they can't op...