A tourism official from China visited Taiwan last week, and asked that its flag and pictures of its president be removed from places on his itinerary.
Cheeky.
The ancient Spartans knew how to handle situations like this. Ambassadors from Persia once visited Sparta, demanding soil and water as a token of Sparta’s fealty to the Persian King.
The Spartans instantly set upon the ambassadors, and threw them into an waste-filled latrine. "Take all the soil and water you want," the Spartans jeered.
A similar response would have been appropriate in this case. Sometimes extreme measures are required to teach some people elementary manners.