You know those little smoking enclosures that some airports have? Yeah, those are all over Japan outside (albeit not air-tight ones). You only see people smoki

You know those little smoking enclosures that some airports have? Yeah, those are all over Japan outside (albeit not air-tight ones). You only see people smoking in them or in buildings where smoking is allowed, commonly bars. It's a pretty great way of controlling cigarette butt litter, actually.