From the top of the stairs, Nolan looked down and reached out his arm to that first step. He then tilted slightly forward. I quickly grabbed him and realized I should probably teach him to climb down before he attempted this crazy feat on his own.
So I showed him how to climb down the stairs properly - on his belly, feet first. The next day, I showed him again. And on day 3, he went for it all on his own...on his belly, feet first. The kid is quick AND follows directions well. Good boy :)