My 360 just died in the weirdest way

[spartan004]

I've had my 360 for 8 months and it was doing just fine when last friday I had to leave for a soccer tournament and when I came back just now I turned it on and it had the RRoD, and I thought, how does it die bieng left alone for 3 days, that makes no sense. how does not playing it kill it?