Sophia: I'm going poop on the potty.
Me: Yes, you are.
Sophia: I can say poop because I'm in the bathroom.
Me: Yes.
Sophia: It's not polite to say poop and pee when you're not in the bathroom.
Me: Yes, it's best to not say that in public.
Sophia: Poop, poop, pee, pee, poop, pee, poooop, poopy, poop, pee...
Me: Okay, honey, are you ready to go back to bed?
Sophia: Yes. (She takes a couple steps towards the bathroom door, then stops suddenly.) Wait just a minute: Poop, poop, pee. Ok, now I'm ready....
(Let's hope that's out of her system.)