"But what about glass?"

Will the barefoot runner who has ever sliced his or her foot on a piece of glass please stand up? If you're able, of course. Because I'd love to meet you, mysterious and mythical stranger that you are. Anyone who runs without shoes is constantly asked about All That Dangerous Glass Out There! Take this comment from Kevin Kirby, the angry podiatrist who pops up  whenever natural-style running is discussed.

KEVIN KIRBY I have no problem with people who occasionally run barefoot on a safe...