Looking at that imposing and yappy blog post below, I thought i'd offer a "too long; didn't read" synopsis from my Something Awful days.
A parent must be creative and adaptive in meeting their child's individual and continuously changing needs, as all the physical force, screaming, or reasonable explanations in the world won't do the trick. Be nice to parents of children with special needs, as they have a tough row to hoe. Go with the flow and keep a sense of humor. Sometimes, no matter what you do, you will be unable to function due to stress, lack of sleep, lack of food, illness, or teething, and then it's okay to hide under the covers or cry your eyes out. We've all been there, and if we haven't, we have nannies.