How Does One Expect the Unexpected?

So I got to do some shooting over break. After one scene, I was walking with the camera and felt a sudden pain in my foot. Luckily, I felt it just before putting all my weight on that foot. Hopping around, trying not to drop my camera, I kicked off my shoe. That's when I discovered I had stepped on a block of old moldy wood that had a twisted rusty nail sticking out of it. This thing was just hiding in the dead leaves waiting for me. The nail had punched through the bottom of my shoe and was stabbing at my heel. It didn't break the skin (no shots for me!!!) but it put a bruise where it was trying to pierce my foot. I wish I had taken a picture. Wasn't thinking of it at the time though.