Yesterday I had a doctor's appointment, so my friend Kim told me she would watch the kids. In preparation, I explained to the kids where I was going and that they needed to listen to Miss Kim.
Me - While Mommy is at the Doctor, you will be at Miss Kim's house playing with Trey and Grant. In Miss Kim's house, Miss Kim is the boss so you need to listen to everything she tells you. Do you understand?
Peter - Yes. But what if Trey's Daddy is home, then he will be the boss?