Restaurant Ettiquette

Beatrice is struggling to understand how restaurants work. When the server takes a plate or a cup for a refill she points and yells, "No! No!" It's like they're taking her toys. We've been calmly explaining to her that servers are just doing their job, and we should respond with kindness and by saying "Thank you." As of today, she now yells, "No! Job! No! Job!" I'm fairly certain something major has been lost in translation.