You are a guest in someone's home. They have certain rules they live by and ask that you respect them. Do you or do you insist upon doing your own thing? Isn't that rude?

Of course it's rude. It's also arrogant and thoroughly obnoxious. If you don't know ahead of time the rules these folks live under, you don't belong there anyway. 

Of course I agree with thee. Same thing when you are guest in someone's country as were the 4 American swimmers who disgraced themselves and insulted Rio. I would think common sense would dictate that one does NOT trash a country where one is a guest. One does not lie or cover up bad actions. That we would have to point that out to anyone is shocking to me.   Why would you trash (literally or figuratively) a host country, a host's home? It is absolutely irresponsible and unacceptable. The trashers are the bad guys here so defending them makes the defenders bad guys too in my opinion. Thank you for your reply Polk! :)