Mini-pigs that interact with and receive positive feedback from humans during the first two months of life are social and enjoy being with people. They typically have a daily routine that involves eating, drinking, eliminating, socializing, sleeping, and digging. Pigs are very intelligent and need environmental enrichment, or they can become bored and destructive. Pet pigs that are not provided with appropriate environmental enrichment or are not socialized early in life may develop stereotypical behaviors including pacing, staring, excessive drinking, hitting walls, drooling, rubbing on things excessively, and repeated licking or chewing on objects, especially metal and rope. Ideally, pigs should be allowed to root outside in untreated lawn. If they are not allowed access to an area for rooting, they may dig up floors, carpeting, or walls in your home, and chew up house plants. Pet pigs can suddenly become aggressive in response to changes within a household including a change in caretaker schedule, introduction of new pets and people, and discomfort from illness.
Owners will recognize that horses and ponies all have different 'personalities', with varying temperaments, willingness to please and responses to environment and handling. With the exception of some of the miniature breeds, they are bigger and stronger than their handlers.
There are many breeds of miniature pigs, including the Vietnamese pot-bellied pig. In addition to pot-bellied pigs, the term mini-pig includes an additional 14 recognized breeds of small pigs including Julianas and KuneKunes. Vietnamese pot-bellied pigs can be as heavy as 200 pounds, reach a height of 14-20 inches at the shoulders and typically live for 14-21 years. Mini-pigs communicate both with sounds and with body language. Mini-pigs should never be left alone unsupervised with even the friendliest, potentially predatory, dogs and cats. Mini-pigs are very smart and can be trained to walk on a leash/harness and to sit, stay, come, and retrieve objects.