whilst I agree that when we are in other countries we should try to adhere as much as possible to their culture so as not to offend, it can be difficult.
Like Mr P said, it is the minority who think it is their right wherever they are to act as they wish and don't care about offending anyone, they give others a bad name and it is hard to gain respect back once it is lost.
We should all be judged on our own merits, not on the actions of some.