On Fri, 23 Dec 2016 01:13:08 -0500, FromTheRafters advised:
Wow. A apark plug. I wonder if that's what I ran over?
One day, decades ago, when I was just an obnoxious kid, I was following a truck at night on a crowded New York highway and I made the mistake of pissing him off (I was young and stupid). I probably beeped him or flipped him the bird but I don't remember what I did nor what he did to cause the altercation. He may have been innocent and he is just circumstantial, but while I was following him, my tire suddenly blew.
All I remember was hearing a loud POW and my tire was flat instantly.
There was a gash in the tire tread, as I recall, and nothing else visible. As if a knife had been stuck in the tire. I changed to the spare, and remember thinking, "never piss off truckers" (and I never did again, since truckers are not your friend).
A day or two later, when the tire is replaced, there is an actual deep mark in the alloy wheels on the *inside* of the rim directly across from where that gash was, but no object. To this day, I don't know what suddenly flattened that tire; but whatever it was, it was big.
Whatever flattened that tire was long enough to go inside the tire and touch the inside of the rim which is a few inches, but it then came out. It was like as if a railroad spike had been run over.