Mugsy the Clumber Pei (Shar Pei / Clumber Spaniel mix) at 6 years old—"Mugsy was a rescue dog from South Carolina. This is a great mix of breeds. He is mellow like a Clumber but very Shar Pei like as well."
The Clumber Pei is not a purebred dog. It is a cross between the Clumber Spaniel and the Chinese Shar Pei. The best way to determine the temperament of a mixed breed is to look up all breeds in the cross and know you can get any combination of any of the characteristics found in either breed. Not all of these designer hybrid dogs being bred are 50% purebred to 50% purebred. It is very common for breeders to breed multi-generation crosses.