What's the weirdest your siblings or cousins have done?

A few weeks ago, two of my younger cousins and I were staying over at our grandma's house for the day. The younger one and I were just lounging around watching TV when my other cousin, his older sister, comes out of nowhere and touches his arm, and says "I'm going to rape your wife," and walks off. They're 12 and 13 1/2.