I participated in a softball tournament a couple weekends ago. Our team went 0-4, and I was unspectacular, but it was fun. I did scrape up my knees a couple times sliding into base wearing shorts, so the scabs on my knees were a source of fascination to Ir for weeks. She asked how I had gotten them, and having understood that it was from 'falling' while I ran, on a couple occasions she explained to me very kindly that 'kids run without falling,' and preceded to show how this feat might be done... running briskly back and forth across the room as a demonstration. She indeed did not fall.