One time, when my parents went on vacation, they left my older sister in charge of me. She wasn't too thrilled about it, because she had a boyfriend and wanted to spend Saturday night with him at his family's cabin by the lake, but she knew that if she left me alone, I'd go out dating, which my parents didn't want me doing if they weren't home. We fought about it all week, but I knew I had the upper hand, since she couldn't make me stay home without giving up the weekend with her boyfriend. When I told her as much, she just grinned nastily and said, "We'll see about that."