Here and there on the trail, it feels like he gets a bit ahead of himself, like he isn't really paying attention to where his feet are going. Almost as if he gets going a little more forward with his body than his brain can keep up with. Of course it is when he does this that he seems more prone to tripping and/or slipping. When this isn't happening, he is very sure-footed, relaxed, and smart about what he's doing. Do you have any suggestions as to how to get him focused back on his feet when he starts to get ahead of himself?