One night years ago I was watching TV and suddenly felt hungry. I went into the kitchen and made myself a peanut butter sandwich. Back in front of the TV, I took a bite of my sandwich and realized I was thirsty. I put the sandwich down and went back into the kitchen to get myself something to drink. A few minutes later I was back on the couch watching TV. I sat there for a few minutes and began to feel hungry. Then I remembered I'd had a sandwich. Or did I? I had no actual memory of eating the sandwich. I looked around, but I didn't see it anywhere. What happened to it? Suddenly I jumped up from the couch and looked down at a completely flattened peanut butter sandwich. I must've sat on it for at least five minutes.