Dog so overjoyed to see pet owner she passes out

Casey the schnauzer really missed her human friend, Rebecca Ehalt.

After a two-year separation — Ehalt was working in Slovenia while Casey stayed behind with the rest of the family in Murrysville, Pennsylvania — the much-awaited reunion was almost too much for the cute canine to handle.

Greeting Ehalt with excited squealing-meets-hyperventilating, the small dog worked herself into an adorable tizzy — and passed out.

Ehalt reassured viewers of the viral video that the dog is okay.

"The schnauzer, Casey, was taken to the vet, the vet saw the video, and everything is fine with her. No worries," she wrote on YouTube.

There's nothing quite like an enthusiastic "welcome home" from a pet.

Here, a massive dog bear-hugs his owner returning home from duty.

And contrary to popular belief, cats can show a little excitement for a returning owner, too.

This little girl burst into grateful tears after being reunited with the dog she left behind when the family moved six months earlier.

"Thank you so much!"