Sure, kids make mistakes, but some kids know exactly what they're doing. This 16-year-old, Sean , had a habit of playing innocent pranks on his stepfather, which were mostly allowed as long as they were minor and playful. At one point, he splashed cold water on his stepdad while he was sleeping, which only really became a problem when he posted footage of the prank on social media. His stepdad forced Sean to take down the video, and Sean never really got over it. That's when he decided to play…