On many other occasions we have found these magazines (or the ripped out pages) at the park or on the street. Even a game that the 5th grade Japanese boys at school were playing had barely clothed ladies drawn on each card. I also remember when we lived in a big apartment building we would get close-to-nude picture advertisements in our mailbox slot all the time.
We've had to address this issue on many occasions with our kids and we continue to pray for God's protection for our sons...not just for their eyes, but for their minds and hearts as well. We pray God would keep them pure. We also pray for God's deliverance in the lives of so many Japanese men who are blindly looking for fullfillment, but instead find themselves in an empty prison.