Here's a continuation of the previous quote from Fraiberg. I try to keep this in mind while wrestling with the baby at diaper-changing time:
The chief characteristic of the second year is not negativism but a powerful striving to become a person and to establish permanent
bonds with the world of reality. We must remember when we speak of the "negativism" of the toddler that this is also the child who is intoxicated with the discoveries of the second year, a joyful child who is firmly bound to his parents and his newfound world through ties of love.....Under ordinary circumstances it does not become anarchy. It's a kind of declaration of independence, but there is no intention to unseat the government....The citizen can be allowed to protest the matter of the changing of his pants (they are his pants, anyway) and the government can exercise its prerogatives in the matter of pants changing without bringing on a crisis. When the citizen is small and wriggly, is illiterate and cannot even speak his native language, it takes ingenuity and patience to accomplish this, but if we do not handle this as a conspiracy against the government, he will finally acquire the desirable attitude that changing his pants is an ordinary event, and one that will not deprive him of his human rights.
Selma Fraiberg, The Magic Years, pages 62-62
It's a lot of work coping with (and cleaning up after) these shrimpy mess-makers, but try to remember that you're in charge, after all. Then try to enjoy the wild abandon that is the miracle of your toddler.
Dr. Heather The BabyShrink