As we celebrate St. Patrick’s Day in any number of different ways (whether you are Irish or not), it’s fun to imagine life with endless luck. With the luck of the Irish on your side, winning $100 from $1 scratch-offs and scoring free concert tickets off the radio would be typical for you. Your collections of four-leaf clovers, horseshoes, and rabbit’s feet would be endless, and all your friends would constantly pose the question, “how do you always get so lucky?” But even if you had a boundless expanse of great luck, it can