And I'm sorry but how rude or inconsiderate is the general public? The need for these types of signs pretty much answers that.
https://steemit.com/opinion/@nananini/and-it-comes-down-to-this
Not long ago I posted the other version of this sign., link above. It was a bit more stern. Lol. Guess management had to change their message. Rude customers must have complained about the first sign which is directed at rude customers.
Not a good sign of public respect.