You handled that brilliantly! What a stupid childish act on her part to hide the phone when SHE told you to call the repairman. Heck next time she tries a childish stunt like that...spank her and tell her "that's what bad girls get."
You didn't tolerate her uncalled for behavior, and you didn't allow her to dictate to you what you should do...and then berate you for it. Keep this up and she's going to learn she cannot be have this way with you.
