The Secret Purpose of That

Have you ever looked at the bottom of a padlock — not while cursing it open in the rain, but just… while it was sitting there?

I did — and I noticed something strange.

A tiny hole . Then another. Small, precise, and oddly placed at the bottom of the lock.

At first, I thought it was a flaw. Maybe a casting vent from when it was made. Or a weird design leftover continue reading …