During my morning run, I regularly pass a mother and her two sons who frequent the track before going to school. The youngest boy appears to be 5-6 years old, and runs (sporadically) w/ flashing tennis shoes. Sometimes I find him sitting on a big rock. As we pass in opposite directions, we greet each other with a wave. This morning, the little one saluted me with a big stiff-armed thumbs up. Kid, you made my day!