Since your Nano ends up looking like it went through some warfare after a few days use you might as well make it a warfare by installing Doom on it.
To do so you need to install Linux on it, which takes nearly no time at all, and then Doom.
This was doomed to happen sooner or later… (ok ok, no more Doom puns)
Lawyers at Cupertino:
Your honor. Playing Doom caused those scratches on the ipod.