[harrall]

But how can you tell if it was lack of recognition?

I wouldn’t be interested in a 2 FPS video either — in fact I would probably avoid looking at it, whether I recognized the humans in it or not.

[drysart]

I mean it's a dog so you can't exactly ask them; but this was a dog that would bark at every other dog. If he wasn't barking at Hooch because Hooch was only showing up at 24 FPS, then I'm inclined to think he didn't recognize Hooch as another dog.