"When your 'Rottie' puppy starts looking less like a Rottweiler," the dog owner said in the video, which has 14 million views.

Nicole said Barkley was a very "emotionally aware" dog who helped her through very difficult times—including his own illness.

TikTok/terab233 When a woman named Tera saw a Facebook post about a dog who kept coming to the same business looking for help ...