disagree, but ok.
keys (am I remembering right?) sometimes get mixed with a phone...maybe not the SIM pin. and thus they could get scratched with keys.
as far as claims to smash a TV with a hammer. people (in my neck of the woods) don't normally hammer near TVs on a daily basis. perhaps if someone used a key near a door on a floor model car and it slipped and hit the paint and scratched it...i look at cars and see from use people's nails are marring the area near door handles. if someone in a car dealership rubber their hands nails near the door handle to see how well it held up fine.
So I guess when you purchase something that has a demo (display) unit you simply look?
Sure the person went a tad too far I think but nothing that screams VANDALISM like some on here are crying. I went to look for a kitchen table the other month and read reports on how well the top painted surface held up, so I was running over it with my nails and using the chair that was with it to see if "everyday use", granted slightly sped up and thus a tad more forceful, would bother the piece. I figure if I am paying a decent amount of money i want to ensure the piece wont be destroyed within a few uses. *I guess I don't make enough money to not care how something i buy will handle* if the person in the story used a hammer on the glass or aluminum to see if it cracked or dented, that would be/could be vandalism, however, this is from an everyday object that may normally be in close contact with the phone and from a device to be used with the phone.