One possible theme could be growth. As the story progresses in part 3, Jim might be growing as a person, learning more about responsibility on the farm.
Since it's a Jim Breuer story, key elements might include his comedic timing. For the goat boy story, perhaps the goat boy's personality is a key element. If he's a silly or naive goat boy, that would drive a lot of the humor. Also, the setting of the story could be important. If it's set in a farm or some fictional place, that would shape the events in the story.
I'm not entirely sure which specific 'Jim Breuer Goat Boy story' you're referring to. Jim Breuer is a comedian, so it might be one of his comical skits or tales that involves a character like a goat boy. It could be a very unique and humorous story full of his signature comedic style.
Since I don't know the exact content of 'jim the farm boy part 3', I can only guess. Maybe it continues the adventures of Jim on the farm. He could be dealing with a new crop season, perhaps facing some difficulties with pests or bad weather. Or it might be about his relationship with a new character on the farm, like a neighboring farmer or a new farmhand.
Maybe Jim is the protagonist who goes through various adventures and experiences. Or, he could be a key figure influencing the events in the story. Without more details, it's hard to say exactly.
In a fanfiction about them, perhaps there's a plot where Evil Jim manages to steal Jim's body or powers. Then Jim has to find a way to get them back. He could enlist the help of his friends, like Princess What - s - Her - Name. Meanwhile, Evil Jim, in Jim's body, starts to cause chaos in the universe. Jim has to outwit Evil Jim and regain his true form. This could involve a series of comical and action - packed adventures as Jim tries different tactics to defeat his evil self.