When my daughter was at that unfortunate age of fascinated by pets but unable to read their body language, we were very, very careful with her around dogs. Because she loved them, but would absolutely be too rough with them. My one sister would let her dog out and let DD play with her for a few supervised minutes, then dog would go back in her crate. For the dog’s protection.
The wonderful dog I owned at the time of DD’s birth was very tolerant of her as a toddler, and would yelp to let me know to come get the kid, she was being a pest. She would also slink out of the room and hide when she had had enough.
The worst thing about this video is how BADLY the dog wanted to leave, and the fact that the adults restrain the dog and keep him there.