As a cyclist and pedestrian, I thought the article "For pedestrians, Md. is one of the most dangerous" (Jan. 24) was particularly appropriate. Recently, I was out bicycling in Columbia and was waiting on the sidewalk to cross at one of the marked pedestrian crosswalks on Great Star Road in the River Hill community. As a driver blew through the intersection, I pointed up at the sign for pedestrian crossing, to direct his attention to it. He actually did a U-turn and came back to yell at me. He claimed that Maryland law didn't require him to stop and that and I had no business pointing to the sign; he then did another U-turn to return to westbound Great Star and, as he passed me, he rolled down his window to yell some invective.