I watched this clip, an a few others, this isn't the first time this guy let a dog get it's nose or tongue caught. As cute as the gif is, the actual clip that poor pup cried so badly. He would have all kinda of animals on a single table, way more than he could manage, and in one of his videos the camera goes dark but you hear a bird take off and a smacking noise, an the guy says he's dead, or he broke his neck, something along those lines. It really really made me dislike this guy's stuff. An now the sight of it always just makes me sad...
That shark one, they figured out that the shark thought that the boat was a dead whale. See the behavior it did is exactly like sharks do to whale carcasses. Only it realized that hey this isn't a whale, I've been smeckledorfed! Then the shark swam away and they got back to dry land.
Second to last one. I hate small dogs for this reason. They are the only dogs I've ever seen to act like assholes. The smaller the breed the more aggressive it generally is. Little ******* .