No one can make you unhappy, you have to do it to yourself. This gives you all the power.
The only worse thing than dealing with a rude person is to be that person. ~ Connie Burgess
Don’t let anyone else determine what kind of day you will have.
When someone is rude to you don’t do anything, be patient and stay calm. It falls under ignorance for them and tolerance for you. An answer/smile might be like a furnace to them. Showing nothing is wise. Try to let them finish what they have to say, don’t answer, and leave that environment. You will feel like a champion because you were wiser. ~ Karima Maach
I usually say, thank you! That startles the rude person. ~ Zenobia Davis