I was having a sleepover at my friend's house. It was night and we were talking about the craziest things we had done. But no matter how much we talked about it, we could never remember them. Then suddenly, my friend said, "Remember that scary night? Remember how we played that game?"

"What game?" I asked. "The one where you made me lie down on the floor with my mouth open?"

"That's right," my friend said. "I tried to bite you and then you yelled at me."

"Oh," I said. "That was a silly game." I had been trying to remember what had happened for a long time. I was so embarrassed that I couldn't remember.