"Newton, they say, thought of gravity by getting hit on the head by an apple. And the man who invented the steam engine - he was watching a tea kettle. Not me. My big idea came to me just sitting on a couch. That boot in the rear to Margo. Heaven knows she had one coming. From me, from Lloyd, from Eve, Bill, Max, and so on. We'd all felt those size 5's of hers often enough. But how? The answer was buzzing around me like a fly. I had it. But I let it go. Screaming and calling names is one thing, but this could mean...Why not? Why, I said to myself, not? It would all seem perfectly legitimate. And there were only two people in the world who would know. Also, the boot would land where it would do the most good for all concerned. And after all, it was no more than a perfectly harmless joke that Margo herself would be the first to enjoy. And no reason why she shouldn't be told about it - in time."