A few years ago, I bought a 12" PowerBook G4 from some lady in vermont. She just stuffed the laptop in an unpadded fiber envelope. One of those envelopes that is like less than 1mm thin but impossible to tear, no padding whatsoever. She shipped it standard USPS.
I was blown away when I got it. I couldn't beleive somebody could be that retarded. She shipped it with the powersupply in the bag and a blank recordable dvd disk in the jewel case. The disk and case were shattered and all over the insides of the bag.
By some miracle, the laptop only had a small dent in the back, and was other wise perfectly fine. Ive used it every day for the last 3 years. Needless to say, I'm a big fan of laptop with all metal enclosures.