Yesterday I went out for a run and mixed between water-shoes and bare feet depending on whether the pavement was snow-covered or not, respectively. Due to the minor thaw I was even able to get out onto the canal path. It was around 25°F outside. I decided to run barefoot through the snow-covered sidewalk on the last 100 yards down the street. Naturally my feet got extra cold but I'm trying to get increased circulation and I figure the way to do that is to train my feet that they need it — not so bad that I get frostbite, but enough that it's uncomfortable.
Anyway, this morning I got a sharp pain my toe. I figured I'd stepped on something yesterday, although it could have been around the house or any time since yesterday morning. It looked like a sliver of some kind so I dug around and cleaned it out. When I finally got it, I realized it was a tiny piece of glass. I was so excited: I finally got cut on glass! It's usually the first thing anybody says when I say I run barefoot on pavement, "aren't you afraid of glass?" Well usually I don't run through it — I pay attention to the ground when I run. But I guess in the winter I can't see it under the snow so I might get a cut now and then.