There is a parallel between the twos and the tens. Tens are trying to test their abilities again, sizing up and experimenting to discover how to fit in. They don't mean everything they do and say. They are just testing.... Take a good deal of your daughter's behavior with a grain of salt. Try to handle the really outrageous as matter-of-factly as you would a mistake in grammar or spelling.

Daughters: from infancy to independence (ed. 1978)