Just make sure to ask about the country's customs in order to avoid misunderstandings. I remember a cook visiting us locals in Barbados when I was little and he truly offended my grandma by tasting her soup from the stirring spoon.

A real no no in our family. She smiled awkwardly as not to offend him but threw the soup out after he left. She always blew on the soup and poured it into her hand before sipping as not to contaminate (her words) the whole pot. She believed that you never knew when someone was sick.
As for Bobby Flay. I find him to be the most arrogant chef. No respect at all. I did not like his conduct
both times he was on the Iron Chef. I mean, so what if the guy has the money to replace the cutting board. What he did by standing on it was disrespectful and unsanitary. No one could use that thing again after his shoes hit it.