It's funny that almost no one follows these 'unwritten rules'.

[NorthernWind]

You can find many these 'unwritten rules' but only a minority follows significant part of them. Almost no one follows them precisely and many people don't follow so-called 'unwritten rules' except the most important.
Maybe I just live in bad environment.

 

[stalin22]

Must be the jews


Which caused society to become collapse

 

[xkcdCleftcel]

Need not apply for chad