My pet javalena was a 1 person animal. He started out being friendly with everyone but one day just turned into a 1 person pig.
He tried to be the Alpha with me one night while I was processing deer. He got in the walkin freezer and would not come out...in trying to get him out I inadvertently dropped a deer neck on his head ('bout 20lbs) he didn't like that too much. He started popping his teeth and trying to attack me. I had a big thick plastic top to a meat tote, between him and me. I just kept kicking it right into his nose until I thought he had gone down for the count. He came too but ever after I was the Boss! He made the best watch dog ever...nothing got by him and he could hear an ant walking, so no one ever tried to sneak around my place.
Haha! We used to have a couple of hogs growing up that always got a kick to the snout. Feeder pigs get mean since you only feed and water them.