I remember when my father and I visited a mall for the first time. We were amazed by almost everything we saw, but especially by two shiny, silver walls that could move apart and back together again. I asked my father,
"What is this, Father?". He responded, "Son I have never seen anything like this in my life, I don't know what it is!". While we were watching wide-eyed, an old lady in a wheelchair rolled up to the moving walls and pressed a button. The walls opened and the lady rolled between them into a small room. The walls closed and the we watched small circles of lights with numbers above the walls light up. We continued to watch the circles light up in the reverse direction. The walls opened up again and a voluptuous 24-year old woman stepped out.
Then my father said to me, "Go get your mother!".