Goldilocks, don’t let the bears win

I ensure that I have a full hour to devote to the babysitter prior to our departure. This enables me to run over the rules and remind her of where everything is. I am determined that this shall be a successful relationship for all of us.

“So there’s just one last thing that I wanted to draw your attention to.”
“Yes?”
“The boys sleep in the same room in separate beds. She’s next door in her own bed. Both the boys wear pull-ups and I’ve left them here on the side for you.”
“O.k. No problem.”
“Great, it’s just that a while back we came home to find that they were all in the same bed. The boys didn’t have pull ups on which meant we had to give everyone a bath and change the sheets, which wasn’t much fun at 11 at night, if you know what I mean?”
“How did that happen?”
“I’m really not sure, but they managed to convince the sitter that they all slept in the same bed and that they didn’t need pull-ups!”
“How strange! Did you tell the sitter that they slept in separate beds and that the boys wear pull-ups?” I look at her for a moment, uncertain how to proceed.
“You know to tell the truth, I showed her the bedrooms and the beds and the pull ups, but I can’t be certain that I made myself understood. That’s why I’m telling you now, just so that there can’t be any misunderstandings.” I smile, in what I hope is a warm and sincere manner.
“Well, you know, everyone knows that boys and girls don’t sleep in the same bed!” This was not the response I was expecting. We live in the Western world, where it is less common for children to share a bed. There are three children and three beds. Is it wise to leave an adult in charge who has no matching skills?
“Indeed.”