M..
I dont know the "right" answer, but I told my daughter, you dont have to like everyone, but you HAVE to respect everyone, even if they have no manners. :)
No calling names back, etc. I told her to ignore kids like that, and if its really bothering her, Mommy will take care of it. :)
Shes only 6, so I still feel like I have to stick up for her, I dont care what anyone thinks. Luckily most moms were on board with Sam I Am, because I would have done the same thing.
Unfortunately this is a fact of life, and its going to happen to everyone, even the "mean girls". But when its to the point where its really bothering my child, Im going to "meddle" for as long as Im allowed. :)
LOVE MY KIDS!!! ROAR!!!