Quentin Crisp describes "Manners" as "how to get what you want, without being an absolute swine in the process".In Canada there was a huge kerfuffle a while ago because Sikhs wouldn't/couldn't remove their turbans when entering a Royal Canadian Legion (similar to VFW)building.
Seemed pretty tacky for the "old soldiers" to object (not all of them did) but I could never understand why a Sikh would want to go into one of those places in the first place. Pretty whitebread with lotsa beer.
Rick