To get to Caldwell where there are three branches and 8 missionaries, we have to go over a 1-way bridge. You can't see the other end of the bridge from either side. So, sometimes, like this day, a car will start across the bridge and another car has also started across the bridge coming right at you. The complication is there are usually several cars in a line going across the bridge. Getting two lines of cars facing each other requires coordinated backing up from one of the lines of cars. Deciding who will do the backing up sometimes leads to stalemate, like today. So, we went away and came back a half hour later and it was sorted out.