What you don't know is behind you could kill you

I'll be 77 this summer, and not a day goes by that there isn't a reminder of the perils of aging. Most of them, of course, are the normal ailments one suffers when one gets older.

But lately I've become more conscious of external dangers. A few days ago I was nearly run over from behind at the local park by a couple of small-child cyclists pumping the pedals as if the Devil was after them. They called "On your left!" but of course I couldn't hear them. Trooper reacted, but not in time for me to step aside on the path. The kids swept by uncomfortably close aboard, and Debby said, "You've got to do something."

So I did.

I now walk clockwise around the park path against most of the traffic, which normally follows a counterclockwise course. That way I can see my nemesis before it strikes me down.

I've also put a cyclist's rear-view mirror on my sunglasses so I can watch for unseen dangers behind me. Looks dorky, but it works.

In Catch-22 Yossarian constantly jotted down in a notebook all the horrible things that could kill him. By the end of the novel he had filled every page.

I'm getting there, too.