Nowhere to go but UP...

Noah has been climbing the stairs for a while now and has yet to figure out that he can't go down the way he sees us doing it (standing), but he tries... with assistance of course. Today he made a break for it and I caught him halfway up the stairs to the second floor. He had a look on his face of both determination and fear... What to do? I think he was happy when I scooped him up and made the "decision" for him.