as it's story telling time, i'll tell you mine... =)
so I just bought Fable2, was looking forward to play it (as I played it at a friend's house before and I thought it was kickass). So i put in the fable disk, played 5 mins, collected 3/5 coins when suddenly... my game froze. nothing worked anymore. when I opened the CD drive thing, the image just remained the same... had to turn off my 360 to get rid of the frame on my tv...
anyways, I got back to the shop, told them about the problem and got a new disk... with this one I actually managed to play through the tutorial but once again, it crashed.
So I mailed to microsoft about this, asking them what to do. They told me to send my xbox in and gave my a brand new one... and tadaaa! fable worked

no glitches, freezes or anything anymore