While visiting Zion Nat'l Park, I stopped in a turnout to take pictures but somehow got caught in a sandwich between two huge shuttle buses carrying Japanese tourists. When I wanted to back onto the Park road, I had absolutely no view of the incoming traffic. Some of these gentlemen saw my delicate and unsafe situation and rushed to help me. They positioned themselves on the road and stopped the traffic. One of them directed me so I could back up and return safely onto the road. I only know eight words of Japanese but I thanked them profusely. Arrigato gosaïmasu, tourist-san !