Miserable accident of killing a small girl in swimming pool.

The accident was occurred due to improper fitting of grating attached at the sidewall of the pool that is connected to the drain pipe which involved the girl by accident.After that,however,other similar cases are found throughout Japan that may also have the same risk.When I heard about such accident,I've always thought that it's none of other's business,but can be happened around me.

Also,I think it looks like a game of whack-a-mole arcade(MOGURA-TATAKI) happening anytime and anywhere that seems to have no solution for putting an end to our human errors.

I hope some convenient system would be established so that we can share various mistakes as soon as that happened in order to avoid same mistake again.