Years ago, when there was still Marshall Field’s in Chicago and my son was very young — six-ish — we were downtown having a lunch-with-Dad day. In the morning we walked over to Fields on State St. We went out the revolving door onto State, my son in front, and when I got out her was nowhere to be seen. The minute that followed was a full-blown horror movie unreeling in my head, watching all the people go by and no son. When I finally did a 360, there he was, hiding next to the door against the wall. NOT my favorite memory of his childhood!