I don’t remember ever seeing that exactly but I’ve seen all manner of cheap hardware and user error. Had a lady complain about her cup holder one time and yes she was talking about the cd drive. When we pulled the drive apart after replacing it there was a huge amount of dried coffee in it. She must have like it nearly solid with sugar and cream. Some guy came in complaining the windows background looked like sunset. It was overheating. The cpu and video card fan had so much paper dust in it that the fan blades had noticeably worn away and the dust had a mirror finish. I really wish I had taken a picture of that one.