As I was riding in crowded beach town traffic this afternoon, a guy in a pick-up truck tooted his horn at me and hollered "keep right". As the traffic was stop-and-go, I caught up to him quickly. I stopped and explained I was not all the way to the right because of the parked cars; you never know when a door will open. He said, "Oh, now I understand." He was concerned because it is a holiday weekend, and he thought I might have been .under the influence. The light turned green, we said good-bye, and went on our ways.