
For every record player there exists a record it can't play...
Back in 1979 Douglas Hofstadter in "Gödel, Escher, Bach: an Eternal Golden Braid" noted that for every record player there potentially could exist a record it can't play - because the vibrations from that particular record will vibrate that particular model of record player to bits.
He was using it, incidentally, as an analogy for a virus destroying a host cell.
Never thought it would happen in the real world though...