This golden retriever pulled a fast one on his own, and the pair were shocked to see how the rambunctious dog this calm puppy grew up to be!

Ellie came to her current owners as a quiet and reserved puppy, but even animals change over time.

Now a fully-grown dog, Ellie doesn't put up with anything, and she's constantly jumping around wildly and knocking over the odd piece of furniture.

On their TikTok page @elliethenaughtygolden, Ellie's owners showed a funny before-and-after comparison of the dog's temperament.

Dogs Dachshund dad has the sweetest reaction to meeting newborn puppy!

"POV: you brought the calmest puppy out of the litter..." the on-screen captions read. "Or did we?"

The video sees the once shy puppy grow into an active and agile adult who loves chaos!

As it turns out, the video's comments proved that this wasn't exactly a unique experience.

"My Golden is 18 months old now, so basically I have a velociraptor in the house at the moment," one user wrote.

"the high energy zoomies means she is super happy. highest compliment a puppy/dog can give. love them so much," another gushed.