All this reminds me of one of my first-ever experiences with lunch duty. Sometime during my first month of teaching in Texas, Miss S (a friend from my teaching program) and I happened to be on duty together. I had re-heated some pasta with black olives and feta cheese, and Miss S, who hails from Louisiana, was enjoying a salad with balsamic vinaigrette. Our students' reactions to our lunch choices were hilarious:
Samuel (to me): Oh, Miss L! Don't eat yet...it smells like someone vomited! Oh wait, that's your food...ew, it smells ugly.
Many students (to Miss S): Ewwwww...Miss S, your food smells ugly too! How can you eat that?!
Miguel (to his friends): Stop guys...be quiet! Don't say that about Miss S's food...that's what they eat in her country!!!
Riiiiight...her country, which is also your country...
Oh, well, you gotta give him points for politeness!