climber.

The first one is no biggie. So he's standing in a chair. A chair that does not have all 4 legs on the floor. But still, what's the big deal? A boy's got to be able to reach his books. So you do what you have to do.
This second one he's standing on the handles of his rocking horse in an attempt to push buttons on his noise maker.
Sorry for the poor quality. Both pictures were taken with my phone.

But I can't seem to keep his feet on the floor. And he's NOT a coordinated fellow so I'm not sure what his reasoning is for being our little daredevil.