"The play's the thing wherein I'll catch the conscience of the King." ~Hamlet talking to himself

In this story, Hamlet comes up with a genius idea to tell if Claudius is really guilty for poisoning his own brother. He comes up with a play, called Mouse Trap, that pretty much tells the story of how Claudius poisoned Hamlet Sr. During the play, Hamlet and Horatio watch Claudius very closely to see his reaction. Once he recognized what the play was about, Hamlet could tell he was guilty. The King started getting hot and sweaty and very uncomfortable. There are many times today when we try to trick people into telling the truth. For example, that's what lawyers get people to do in court. They say certain things, which make the suspects say things that lead to either them being guilty or innocent. I think that this is a very smart way to get to hear what you want people to say, even though if you’re on the wrong end of the deal it's not so fun.