Back when I had only one child, I didn't have this constant fear that I would lose him in a crowded public setting- probably because I was a major hover-er. When my second was born two years later, a child known for his spontaneity and wandering ways, I still never lost sleep over the fact that I could lose one or both of them in a crowded public setting, mostly because while one was on foot, the other was always (ALWAYS) strapped into a stroller making it relatively easy to keep tabs on…