On March 31 he was headed home, on foot as usual, on the far left of South Road. A car came in his direction, which he judged was going too fast and not as far into the middle of the road as he would have liked. As the car approached, Dr. Walsh waved his arms "as I usually do just to make sure the driver can detect motion and see me more clearly." He said the driver saw him but still came within 18 inches of him.