Upstate NY, a friend installed a security camera because his dog kept freaking out for no reason. I just stumbled across the vid in my camera roll. Any thoughts on this? Side note, you can see the dog follow the figure on the bottom left and my friend out

Upstate NY, a friend installed a security camera because his dog kept freaking out for no reason. I just stumbled across the vid in my camera roll. Any thoughts on this? Side note, you can see the dog follow the figure on the bottom left and my friend out