Subtitles section Play video Print subtitles want to speak real English from your first lesson. Sign up for your free lifetime account at English Class 101 dot com Opening an umbrella inside Did you know it's believed in the US that opening an umbrella while inside a building will bring bad luck? This superstition most likely stems from pure pragmatism. Umbrellas used to be larger and more unwieldy, so opening them inside tends to result in broken things and accidents. Bringing an already opened umbrella inside, however, is totally fine. Thank wait till we're outside. Don't you know it's bad luck to open an umbrella indoors four leaf clovers in the US It's believed that four leaf clovers will bring good luck. The more leaves, the better. This superstition has its origins in pre Christian Ireland, where the druids believe that three leaf and four leaf clovers help them see evil spirits approaching. The chances of finding a four leaf clover are 10,000 to 1. Did you enjoy the Siris on American superstitions?