It was quiet in the family room so I headed in there to see what A was up to, and I found him standing on top of his big toy. He discovered how to climb! Scary and fun at the same time....Now I can't keep him away from it. He can climb back down, but he hasn't figured out how to use the slide on his own yet. Today he probably climbed up and down at least 40 times right in a row. This kid has a lot of energy!