I've had some really "interesting" experiences in Japan. I won't go into details because there are many underage members on this forum... not to mention the fact that my posts will pop up in Google.
Thankfully, none of them involved jail time but I did have my share of cuts and bruises with some encounters with Chimpira and members of a Bosozoku.
I also did my share of hard manual labor with illegal Iranians, lived in the scummiest home in Japan and I've even faced my share of discrimination as a second gen Japanese!
I also witnessed some sad things like the human trafficking of mainland Chinese girls.
But with that being said, no country is perfect. I still love Japan... almost as much as Canada.