I never had it happen as i imagine it's got to be fairly rare for the common person but here is a cool video of a CD exploding from high RPM and then showed in super slow motion...
Yeah, some people have no standards
Like back in 1998 i borrowed a audio CD from someone i worked with and after i was done i brought it back to him and all was good. everything was returned to him exactly in the same condition that i borrowed it. but then not long after he wanted to borrow one of my audio CD's and since i take good care of my discs i was a bit worried he would somewhat abuse it. so when i lent it to him i told him to becareful not scratch it etc. well not long after i got the audio CD back, sure enough, it had scratches on it that i know for a fact where not there when i lent it to him. but as expected, he tried to play it off like he did not do anything wrong and at that point i just moved on and was done with that person. normally i would have never lent it to someone i don't trust like that but since i borrowed his i sort of felt obligated to let him borrow one of mine that he wanted.
with that said... the disc was not totally ruined or anything when i got it back, as it still played fine, but it had some mostly light scratches on it. but it just shows someones lack of respect for others property which does not say much for that person who don't have a basic respect for that sort of thing as that should be a standard everyone should have at the very least.