TV series example of the word

The Big Bang Theory Season 9, Episode 23
You know the golden rule of line etiquette,

The Big Bang Theory Season 9, Episode 23
No, it's not fine. It is a breach of line etiquette.
শিষ্টাচার, আদব, কিতা, ভদ্রতা, আদবকায়দা, শিষ্টাচার-বিধি
(1) Rules governing socially acceptable behavior.
(2) Manners.
(3) Politeness.
(1) The basic code that helps maintain a healthy society is etiquette towards others.
(2) Court etiquette was now familiar to Joan
(3) Another rule of etiquette is that greetings must precede all forms of social interaction.
(4) Before you can order at all, you must learn the correct bar-counter etiquette .
(5) Everyone is all courtesy and etiquette and even the ushers are spectacularly dressed.
(6) It seems to be the trend to rebel against all forms of tidiness, etiquette and decency.
(7) No one knew exactly what they would be tested on so most of the boys had moved swiftly to the library to look up royal etiquette and manners.
(8) Etiquette books
(9) Players will be stripped of titles if they haven't followed the rules of etiquette .
(10) He interspersed classes with lessons about the rules and etiquette of the game.
(11) The trouble is that the murky area of tipping adheres to no rules or etiquette .
(12) My lessons in etiquette failed to explain the correct response so I made my excuses and left as soon as I could.
(13) For some reason, these two rules of etiquette seem to be ignored more than any other.
(14) World War Three unfolding at the dinner table was no reason to forget all rules of basic social etiquette .
(15) I also collect books on etiquette from this period because they are just so wonderful.
(16) Codes and etiquette are no way to deal with issues such as racism, sexism or homophobia.
(17) The book, emphasising dinner table etiquette and rustic ingenuity remains a best-seller.
(18) As a result of this, obeying the rules of e-mail etiquette has become vitally important.
(19) She is also an ambassador for UNICEF, and has written a series of best-selling books on etiquette for women.
(20) The whole atmosphere is one of propriety and etiquette , under which the sordid matters of power and money bubble.
protocol
manners
accepted behavior
rules of conduct
decorum
good form
courtesy
propriety
formalities
niceties
punctilios
custom
convention
soft skills
netiquette
the done thing
politesse
Bad manners
The Big Bang Theory Season 9, Episode 23
You know the golden rule of line etiquette,
The Big Bang Theory Season 9, Episode 23
No, it's not fine. It is a breach of line etiquette.