Whenever two people come together and their behavior affects one another, you have etiquette.
Emily PostGolf is a particularly severe strain upon the amiability of the average person's temper, and in no other game, except bridge, is serenity of disposition so essential.
Emily PostThe most vulgar slang is scarcely worse than the attempted elegance which those unused to good society imagine to be the evidence of cultivation.
Emily PostNothing appeals to children more than justice, and they should be taught in the nursery to "play fair" in games, to respect each other's property and rights, to give credit to others, and not to take too much credit to themselves.
Emily Post