well i never

From upstairs I could hear Audrey in the basement shouting, "Oh my G-d! Oh my G-d!" repeatedly. It was an obvious cry for attention, and she was going to get it. I called to her, "Audrey. Come up here." As she reached the top of the stairs, her big brown eyes looked up at me, appearing bigger than normal.
"Why were you saying that?"
"You mean what I was saying on the stairs?"
"Yes."
"I don't know."
"Well, we don't say it. Do you know why?"
"Because it's rude?"
"Yes. And because Heavenly Father is special to us and we don't say his name unless we're talking about him reverently."
"Okay."
"And," I warned her gently, "If you say that again, next time I have to wash out your mouth with soap." She pondered that for a moment and then said, quite matter-of-factly,
"Mom, do you know that Heavenly Father doesn't like for you to wash out my mouth with soap?"
"Really?" I tried to keep a straight face. "Why is that?"
"It's rude."