Will Atherton, a dog handler from Britain, named two breeds of dogs with the worst behavior, 7 News reported.

The trainer said that people who breed dogs of working lines are not always prepared to meet their needs, which leads to disobedience. An energetic and kind dog becomes angry and indifferent if there is not enough activity.

Atherton noted that the English Cocker Spaniel and Cane Corso are the two breeds of dogs with the worst behavior he has met in his career. The Cocker Spaniel is a hunting dog. It is extremely active, so it likes regular walks, runs and games rather than idling at home. However, according to the canine expert, many owners believe they can keep Cocker Spaniels as a decorative dog breed.

The Cane Corso is a breed of dog originally bred for guarding functions.

Many owners agreed with the handler and confirmed that a dog with bad behavior is the result of inadequate training.