I recall my younger sister playing in the sandbox at about 3. Her castle fell over. In the sweetest My-Little-Pony voice imaginable came, "Oh, shit." Perfect cadence and inflection. My dad got to practice his poker face on that one.
Then, of course, there's the old joke where the mother drives the little kids to school one day, something the father usually does. After a few minutes, one pipes up, "Mommy, where are all the sunsabitches that are on the road when daddy drives?"
Last edited by Amateur Barbarian; 12-07-2012 at 04:36 PM.