no surprises at the lack of nouse in some people
Gods, I work selling preowned consoles and pc gubbins to the general populace and am ALWAYS getting people trying to sell in 360 disks with lovely big rings carved into the disks... every single one of them has a 360 sat vertically "like on the tv ads".
Of course, it's not just 360s that will do this, and console sat on its edge has a chance to do it.. 360s just seem to do it if you walk past them heavy footed :P
LIE IT FLAT YOU NUMPTIES!
The people behind the tills listening to the PA play alestorm while swigging coffee and explaining to you very very very slowly that your console chewed the disk knows what they are on about.