The only one I can think of is that, when you have too much of it in your direct neighberhood, you might become a bit 'scroogy' like Scrooge McDuck, the richiest Ducktown inhabitant according to...
Leprechauns had nothing to do with St. Patrick or the celebration of St. Patrick's Day, a Catholic holy day. In 1959, Walt Disney released a film called Darby O'Gill & the Little People, which...