What’s the Hole in a Safety Pin For?

I’m gonna admit something a little embarrassing. I have used safety pins forever — to hold together a busted zipper, to keep a hem from falling, even as emergency jewelry (don’t ask). But you know that tiny hole at the end? The one right at the coil? Yeah, I didn’t think twice about it. Like, ever. I thought it was just part of the design. For, you know, aesthetics or something. It turns out, it serves a purpose. Like, a real one, an intentional one, a kinda genius one. And if you’re like me (read: most of the population), you probably