When something is thin enough to fit into an envelope, light enough to sit on your lap for a couple of hours without discomfort and so compact that it doesn’t even bulge in an airline seat-back pocket, wouldn’t it make sense that one could lose track of such a thing? Even if it is a computer?
Oh yes, this guy lost his MacBook Air! – Reminds me of the few times I misplaced my keys and found them in my closet (amongst the socks), on the front door, in the toilet, …