On Friday at my physical I got a Tetanus booster because it had been ten years since my last. I quipped to Doc H. that I could now safely resume stepping on nails.
Last night I was jogging down the stairs barefoot and stepped on a nail sticking a full two inches out of the wood. The nail was black, as is the painted wood floor on the steps. Fortunately I stomped on the blunt end of the nail, but it was a finishing nail with a narrow head and my foot hurt like fucking hell. No lockjaw for me at least.