Size matters. Disagree? Let's take, for example, your weird cousin's guinea pig, Jonas. Your cousin thinks Jonas, with his little pink rat feet and weirdly soft hair, is adorable. But what if the roles were reversed and instead Jonas was the one who was approximately one-hundred times your weight?

Staring up at those garage-door-sized buckteeth and those gargantuan rodent eyes gleaming down at you like pitiless obsidian, and suddenly Jonas is a lot less adorable. A lot less friendly looking. When you're being rapidly torn to pieces under Jonas' oversized guillotine teeth, you'll realize that size mattered. The entire time, size mattered.