He’s bigger than the couch
If his coat wasn’t so furry, we’d seriously suspect this wasn’t a dog but a polar bear. It’s not just his size, but the shape of his face and nose as well! This dog looks exactly like the polar bears we see in nature shows (we’ve never seen one in real life, but we have a pretty good idea of what they look like thanks to Planet Earth and David Attenborough).
We adopt them from the shelter as puppies, and most of us forget, or simply don’t realize, how fast they grow up. No matter how small they are as puppies, some dog breeds can become huge (exhibit A in the picture above), before they turn one. They grow up so fast; within a couple of months, you might not be able to recognize your dog, which is probably what happened to this person.