It's worn on the pinky finger so that you can feel it when you rest your hand to write (sign something). Just to remind you to not screw up and kill people. T

It's worn on the pinky finger so that you can feel it when you rest your hand to write (sign something). Just to remind you to not screw up and kill people. The ring itself wears down over time, obviously, and I've heard some symbolism about "rough edges" going away as you age associated with it. I've even heard an anecdote about a senior engineer who lost his ring and got a replacement. He was seen in the machine shop taking a belt sander to it because he "felt like a kid." The symbolism about other rings is that the mofo is steel and rough, meaning that you can't really wear another ring next to it without damaging it (unless you have another steel ring). The symbolism is about the pursuit of good engineering trumping the pursuit of wealth. I'm sure the fact that hardness of the ring makes it capable of (and good at) opening beer bottles is entirely unintentional.