These sorts of things can also happen "accidentally" by a coin getting stuck in some kind of industrial machinery. People also do strange things to coins in the name of art, suck as making rings, decorative plaques, tourist knick-knacks and love tokens. And sometimes, bored people simply say things like, "I wonder what would happen to a quarter if I did this to it?" - and when they find out, they get bored with it and spend it.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis