BarefootSoles asked: "Anyone ever step on a nail?"

No, but I have nailed on a step...
...Here's one outa left field - but first go out to your car, remove one of the floor mats, turn it over, and press your hand against the bottom side... ...Ok, so you're back?.... Read on:
On Sunday I was running at the New Jersey shore after we were hit with what was left of tropical storm Ernesto. Our condo was on the bay side, so to get to the beach I had to do about 1.5 miles on the sidewalks and over a drawbridge. Probably from the storm, there was a car's floor mat at the beginning of the drawbridge, where it started to incline. The floor mat was clear plastic, and it was UPSIDE DOWN with thousands of small nail-like pointy things sticking up. I figured they wouldn't be cool to step on, so I ran around it and continued on to my out-and-back mostly beach 10 miler with no problem. But, on my way back, maybe a little fatigued, and running down the bridge, after going around a family on bikes in the narrow walkway, my left foot landed squarely on the upside down floor mat - and it wasn't anything like laying on a bed of nails, as I was hoping, where the pressure is so spread out over each individual point it becomes negligible - it hurt like hell (for a second). My loud "OUCH" scattered a few seagulls...