It makes by blood boil everytime my wife and I go into a restaurant and the hostess and the wait staff refers to us as "you guys". And this from someone usually young enough to be, well, young enough to be ALOT younger than we are. And instead of saying thank you, it's usually "here ya go". WTH ever happened to Sir and Ma'am and thank you?
When I get the "you guys" greeting, I say "there's only one guy here - what about the lady?". That usually works. If they do it again, I say "and the lady will have...." . Educate while correcting.
I also thank them for serving which normally gets a "thank you" from the server by the end of the meal.
