all of mine have a crease that the ring will push down into, and allow me to unscrew. But, I have seen many different kinds.
Hey, careful, man, there's a beverage here! - The Dude
I don't understand the purpose of the line, "I don't need to drink to
have fun." Great, no one does. But why start a fire with flint and
sticks when they've invented the lighter?