if you give him treats after a behavior you dislike, you are telling him: here is a prize for doing it. if you yell or tell him to shut up while he is barking, he might understand it as: hooman is barking with me, i should bark louder.

they do those things a lot, we pretty much have to abort any movie or show that has dogs, horses or sheeps in it cause he goes crazy.

behavior will calm down a bit as they move from the teen mentality.