lack of oil woud be my guess...some people really are stupid.
my friend's KA was doing fine at 235k miles....he bought the car from someone who prolly took care of it. well he really didnt know anything about maintenance (at all..) and ran it without an oil change for prolly the better part of a year...he just "added oil" never changed it. He spun his #3. oil was black as tar (what little was in there) when we took the engine out.