Imagine you are walking down the street in London and you look down and see an 11-inch-long stick made of holly. You pick it up, and upon inspection, you realize that it has a core of phoenix feathers. You realize you have discovered Harry Potter's magical wand. You immediately say "Expecto patronum," and a wispy shape of a tiger appears, a guardian against Dementors. You put away your new, powerful tool and never bother to figure out what else it can do.