Courtesy

* As one who walks for exercise, I am fearful of being run down by bicyclists, roller-skaters and skateboarders who suddenly and soundlessly appear from behind.

A bit of common sense and etiquette I was taught years ago when learning to ski would prevent accidents. The person about to overtake another should yell the warning, “Passing on your right,” or, “Passing on your left.”

Although bicyclists are not supposed to be riding on the sidewalk, they frequently do.

BARBARA FRENCH

Anaheim