" Children were to be seen but not heard in adult company in those days, but I never felt left out. For example, my father belonged to a singing group that often met in our house. My brother and I had to stay upstairs and amuse ourselves while my mother played the piano and the men sang. As soon as the music stopped below, Bob and I would drop whatever game we were playing and rush back to the sewing room, which was right above the kitchen. I would pull the warm-air grate out of the floor (that was before we had central heating, and floor registers were used to let heated air rise to the upper rooms). My mother would put a dish of whatever refreshments she was serving on a tray that my father had affixed to an old broom handle, then she would hoist it up to us. It was a delightful feeling of adventure, because my mother pretended to be sneaking the food away without letting the other adults know. I "
― Ray Kroc , Grinding It Out: The Making of McDonald's