St. Patrick’s Day and the science of luck Is it possible to forge your own luck? To have a chance you need to take a chance, experts say Published: Tags: ORLANDO, Fla. (Ivanhoe Newswire) – March 17 is Saint Patrick’s Day, but luck isn’t just for the Irish. While over 50 percent of Americans don’t believe in bad luck superstitions like breaking a mirror or spilling salt, many people still attribute opportunities and accomplishments to having good luck. From horseshoes to four leaf clovers, to a penny face up on the sidewalk, everybody has their own idea of a good luck charm.