Sherlock Holmes and three passers-by Sherlock Holmes and Dr. Watson are walking over the London Bridge. Sherlock Holmes says, "I bet I can convince the next three passers-by to jump off the bridge." Dr. Watson accepts the bet. They see the first passer-by. "Mister, you are an Englishman." "Yes." "You are going to the stock exchange." "Yes." "Did you know that the stock market crashed?" "My God!" He jumps off the bridge. They see the second passer-by. "Monsieur, you are a Frenchman." "Oui." "You are going home from a woman." "Oui." "Did you know that she has the pox?" "Mon Dieu!" He jumps off the bridge. They see the third passer-by. "Gospodin, you are a Russian." "Da." "Did you know that it is strictly prohibited to jump off the bridge here?" "I don't give a damn!" He jumps off the bridge.