My college freshman roommate used to talk in his sleep. One night I was up late working on a paper and was blabbering away- all gibberish, but it was late and I was tired so at some point started to have a conversation with him...
Oh no... There goes Tokyo...
I'm imagining some scientist getting pranked with a whoopee cushion and then thinking, "if we scale this up, we might have something here ..."
They're not. They're just very territorial about their space.