I bought a new cordless headset telephone so I can chat while I'm washing dishes. I called Judy to tell her about my new toy; I mentioned that I was watching the shadow of my building move across the wall of her building. "Wow," she exclaimed, "I was just doing the dishes watching the shadow of my building on Ralph's building!"
I asked if we should call Ralph to see if he was doing the same thing.
"No," Judy said, "I think we should just assume he is and that we're all suspended above the ground with our hands in hot water watching the same shadow on different buildings."
Judy was right; some things are better left to the imagination.