Is it OK to yell at your subordinates if they make mistakes? What about your spouse? Younger siblings?
There is NO excuse for either physical or verbal abuse.
None whatsoever.
You will lose your job (on the spot) if you're rude to a customer in an intl business.
Control yourself, smile, and ask how you can be of help.
She decided that the best way to show me she's the new boss is by being rude and obnoxious.
I told my people, "Remember, she's the client. She pays our salaries."
Be nice (even when they're a rude) or get a job that's not customer-facing.