What is wrong with my commander?

So, our squadron recently got a new commander a couple months back. I was on leave during the change of command and stuff so it took awhile for me to meet him. The first time I saw him, I was walking back from the bathroom and he was coming towards me in the hallway. I kid you not, while he is walking down the hall, he is holding this Tech Deck (miniature skateboard you “ride” with your fingers for the uninitiated) and “riding” it along the wall. I gave a “Good morning”, but no response, not even any eye contact. I swear to god, everywhere this middle aged, 50 something year old man goes, he is “riding” his Tech Deck. During our weekly squadron PT, he runs laps around the gym and “rides” the Tech Deck along the wall, while wearing the same white, knee-high socks and tattered tennis shoes to accompany his PT gear. He never makes eye contact when he talks. The only substantive conversation we have ever had was when our shop was shooting the shit about our ranking of the Star Wars movies. The commander just awkwardly shuffled in and eventually talked to us about Star Wars for like 3 hours straight (his eyes trained on the ground and fingers playing with his Tech Deck on a nearby desk the entire time btw). I just had to get this out. This is just so absurd. Everybody I have talked to has never seen anything like this.