Siblings have the uncanny ability to be each other's best friend and worst enemy at the same time. When we're little, we butt heads with our brother or sister more times than we can count. Granted, we probably didn't do anything as sinister as this bedtime heist, but it certainly wasn't a conflict-free relationship.
This sister can't handle any more of her brother's wild energy. While she keeps insisting that something is wrong with him, we all know that he's just acting like any other rambunctious boy his age. The solution she finally proposes to her dad, while novel, might not be the most legal way to deal with her frustration. When we grow up, it's fun to look back on these sibling rivalries and laugh at how meaningless all of our fights really were. After all, we should be thankful that we got to grow up alongside someone who loves us.