My mom was babysitting my four-year-old niece. Niece wanted sausage for breakfast but Mom didn't have any.
Niece lets out a dramatic sigh and says, "No sausage? Dammit!"
Mom's trying not to laugh. Mom says, "Only grownups can say dammit."
Niece: "No dammit?"
Mom: "No, no dammit 'til you're older."
Niece: (another dramatic sigh) "OK..."