Gnat? On those last two videos? Maybe? What a funny fellow. Mr. Jazz Paws indeed! 
ETA: Or could he be “shadowboxing”? Can he see his shadow, or a reflection there? Part of the most recent first video is grooming behavior, he wipes at his face like he’s got a spiderweb on it. Gnat, or teeny tiny spider perhaps?
I don’t want to be a downer here, but maybe he is seeing those little floating things in his eyes or maybe he has the begining of cat-aracts.
Yeh, I noticed that suggestion of grooming behavior too, which tends to happen at the end of the exercise. But it doesn’t explain why he stretches so high overhead sometimes. I don’t think he’s seeing a shadow, given the variety of surroundings and lighting conditions in which I’ve seen him do it.
He certainly has no trouble seeing the rest of the time. Floaters in his eyes would make sense.
But I still think he’s mildly deranged.
Maybe this has lurked into GQ territory??
I cleaned buildings (law office, bank, insurance building) when I was in school as a part time job.
One of the buildings has a number of small offices for different businesses, and I went into the reception area of one of these office one night, and then noticed that one of the inner offices was locked. (Which they were normally left unlocked.)
Since all the lights were out in the reception area, I just assumed that the door was left locked by accident. The lights were out in the inner office, and so I flipped them on, completely surprising the (married) man with his pants around his ankles (who had really nice pictures of his wife and kids on his desk) as well as the (also married, but to someone else) secretary (with a nice family picture on her desk) from a different company across the hall, who was underneath him and had her dress pulled up past her waist.
You’ve never seen someone jump up so quickly while pulling up his pants. Naturally, I just turned the light back off and closed the door. I don’t think I had the presence to apologize for the intrusion, let alone ask if it were more convenient to come back later.
Oddly no one in his office complained about their trash not getting emptied that night.
Part II
I told this to my cow-orker, who then repeated this story to a secretary in the office complex that he was friends with. Unfortunately, this was the same secretary who was the human cushion. He ignored my desperate hand signals to STFU, and afterward I asked him what the fuck he was thinking, since that was the woman. He said it couldn’t have been, since she’s too nice.
Oh, what? This thread isn’t about catching people in the act?