No tire will stop that

I ride with tires that claim to have some type of teflon material embedded in the rubber to help prevent punctures. This presumably works since I haven't had a flat since last fall, about 1500 miles ago. The difference between the winter and other times of year, however, is people. It seems that no one is out smashing beer bottles in the winter (do they just bounce?) or shingling their roof. This must change in the summer since this is the time when I get flats. Meet the enemy:

I don't know when I ran this over but only heard a click...click...click coming from the back of the bike. I didn't see anything stuck in the spokes and figured a flat would eventually make itself known so I kept riding. I made it over the Lake street bridge and up the hill on the St Paul side before the back end of the bike started giving me the classic wobbling feeling of a flat tire. I pulled over and started to remove the tire when I saw the nail was so far into the tire that it poked through the rim tape and into the underside of a spoke nipple. This got me thinking: what would the best way be to demonstrate how good is a tire's flat protection? You really don't know until it fails. In this case, probably only the solid rubber tire of a tricycle would have stopped it. I wonder if they make those in 700c wheel size?