You get what you get

I remember Mary saying this to K and K when they were younger. Heck maybe still... You get what you get and you don't throw a fit. 

Well it's the new motto at out house. After a few days of Greta acting like and even saying she was the boss, I had to do something. So now, if I give her the wrong cup, gave her ketchup instead of ranch, or put something on the wrong place, I say this to her and walk away. The first few times were met with lots of tears but now she's getting what it means. 

Want her to know who's in charge, and that it's not her.