we had a friend a few years ago who's three year old son loved watching tom & jerry, they figured it was fine as they are cartoons. that is until
One day she put her washing on around 15 minutes later she noticed said child standing there watching the washing machine. When she asked him what he was doing he said "waiting for kitty to finish". When she asked him what he meant he pointed to the washing machine and said "kitty getting washed". In sheer horror she opened the washing machine and yeah I will not go into great detail about what she saw but their beloved kitten of 12 weeks has passed.
It turns out he had put kitty into the machine because he saw it on his cartoon and after the wash he was going to put her into the dryer to make her all fluffy!!
Hence to say ever since then they have very closely watched what their kids watch!!