This little puppy took revenge on the local vet during a dreaded visit about its sick tummy as it turned around and relieved itself all over his clothes.

Hilarious CCTV footage shows the black pup, dressed in a checkered jacket, undergoing an exam at an animal clinic in Zhejiang, China, at around noon on December 17.

As it stood on the doctor's table facing the vet, who sat on a computer apparently taking notes, it suddenly turned around and aimed explosive diarrhea directly at his clothes.

The shocked doctor went back in his chair and stared at his soiled white uniform for several seconds.

Meanwhile, the dog's female owner stood frozen in place unsure of what to do. But the vet turned out to be a complete professional as he calmly told her to 'wait a moment,' and then went to change his clothes.

According to the doctor, named Wei Kaiming, the pup had intestinal issues and blood in its stool, which is why it was so runny and dark.