Remember those thick, crusty scabs you would get as a kid? My skin-the-knee-years were in the early 70s, and I would often return from a wobbly bike ride with my knee scraped and bloody. Tears streaming down my face, I would park my purple, banana seat bike – with its white flower-covered plastic basket, in the driveway and burst into our ranch-style suburban house in search of my mom. She would get the “cure-all” basket out of our bathroom, wipe the dirt off of my injured knee, and apply Merthiolate (the pinkish liquid applied with a dropper) to my cut, blowing on it to soothe the sting. But the days afterward weren’t pretty either. The scrape would scab over. And it was hard to resist picking at its itchy ugliness. Blood, I learned, was not my friend. Not only did I fear blood, I was terrified of any sort of injury. A safety first child, I dreaded gym class and even opted out of outings to the toboggan hill or roller skating rink. Blood and fear were forever linke...