Considering he didn't move an inch while Anita was hugging him long after Cruella had left, this troper always took it to mean he had passed out from terror. Who could blame him?
The Twilight Bark sequence, and not just because we get to see cameos of all our favorite dog characters from Lady and the Tramp.
Sergeant Tibbs. EVERYTHING about him, but particularly noteworthy is that when Jasper is standing over the cornered pups, he spreads his front paws in front of them, shielding them despite being absolutely terrified. Fortunately, Pongo and Perdita burst in at the last second to stop the hoods.
The collie that runs after the Pongos to get them out of the storm, which absolutely saved their lives. The dogs of the countryside had apparently set up a 24-hour watch, specifically for the purpose of helping the dalmatian caravan get home safely, and the Collie's appearance and reassuring voice was just an overwhelming rush of relief.