Here are a few comments I found myself saying in my classroom today.
"If it hurts, stop doing it!"
"Hiding my keys is not acceptable behavior."
"No, you may not ask the men across the street for a ladder so you can get on the roof."
"No, you can't be a dog until after snacktime."
"No, we are not getting a hot tub for the classroom."
"Beer is not an appropriate conversation for center time."
And today was a good day!