Greg's "Incident"

Okay, so I was out of town in New York on vacation. Greg was staying at my place to watch the cat. He came to pick me up from the airport on Tuesday and told me he had had an "incident." I wasn't sure what he meant, I thought he had set fire to the carpet or something like that. No, he went on to tell me that the night before, he awoke with a start to feel the bed shaking on its own. The cat had been sleeping in the bed too, and had a startled expression that said "What the hell was that?"
Greg discounted the possibility of a seizure or anything like that, because he was perfectly lucid when he woke up. It wasn't a dream, because the cat felt it too, and besides he could still feel the vibrations after he woke up.
I took this as a significant story, because Greg is on of my more skeptical friends about that kind of stuff. The fact he reported it only affirms my assurance that I have a special "roommate." Now if only I can get Marty to pay half the rent...!