When we were Cub Scouts, we spent months collecting spare change to buy the battleship Massachusetts from the Navy. On the bright August day when the old ship was towed up Mount Hope Bay to its new home in Fall River, my family was one of the thousands aboard the cabin cruisers, trawlers, sloops, catboats, frigates, and tugs that participated in the all-day cavalcade. At one point we came fairly close amidships to the battleship. All I could see was a gray wall of steel rising from the waves and disappearing into the clouds. This memory flashed through my mind a couple of weeks ago when a gray Dodge Ram 2500 towing a trailer swerved into my lane without warning and I drove straight into its passenger door.