oh wow resurrected from the dead
twonpoo signs will be posted that say tattooed people are not allowed but i've ignored them and never been kicked out. you might not make too many friends there but it's highly unlikely that you'd be kicked out. i think it may have more to do with sailors, hokkaido for example gets alot of russian sailors that don't scrub before soaking, get drunk and loud, then cause trouble for the people there. in terms of yaks they usually have their own personal ones that they go to where the owners know of them because they live in the neighborhood. yakuza don't really go to places that wouldn't allow them anyways.
porn question
i'm not really sure but my guess would be that in movies when the sound is soft and inaudible people tend to squint and not see the film clearly so because everything is mosaic-ed out, the loud squeaking would make up for what you can't see. i haven't had sex with any sqeaky toys but i would say j-girls are not ashamed of making noises during etch.