My wife and I were swimming in a little bay near where our younger daughter was graduating from her U.S. high school. At one point, I heard my wife call out for me to cut "it" out, because "it" was bothering her. Being about 100 meters away, I called over to her, and asked what was bothering her? She freaked when she realized how far away I was, and freaked even more when she realized that the irksome clapping her on the shoulder was not being done by me, but by a friendly giant sea turtle.