Ominous Visual Glitch: Darin Peter Oswald can control lightning and electricity. He changes channels on TV that his mother is watching, and when she tries to change it back, it gets static. At the end of the episode, Mulder and Scully watch institutionalized Darin who stares not quite at a TV in the room. Camera pans over to show the screen, channels changing. There's a shot of deadpan Darin, then the whole screen gets static, and it goes into credits.
Shock and Awe: Darin can call down lightning and control electricity in general. He occasionally fries cows with the lightning. Poor animals. Later he moves up to killing people.
Stalker with a Crush: Darin creepily follows his former teacher, Mrs. Kiveat who was the first person ever who was kind to him. She got him work at her husband's car-repair shop. Now he dreams of a life with her, and she's terrified of him.
Teacher/Student Romance: Darin has a major and very creepy crush on Mrs. Kiveat, though she doesn't return his feelings.
Teens Are Monsters: Darin comes off as slightly sociopathic, killing cows with lightning and causing car accidents with his abilities just for fun and to get it on with his crush.