> It wasn't completely blocking her windpipe but it was very close to doing so. I'm wondering why they don't make coins with a hole in the center, like pen cap

> It wasn't completely blocking her windpipe but it was very close to doing so. I'm wondering why they don't make coins with a hole in the center, like pen caps. There's even an ISO standard about pens. Why not coins? https://www.iso.org/standard/81889.html https://www.iso.org/standard/81889.html