The worst trade deal in the history of kidney deals, maybe ever! Your kidneys are just sitting there making the most painful Etsy shop imaginable. Give them too much calcium and not enough water, and they'll craft you a bespoke collection of jagged little stones that feel like you're passing broken glass through a coffee straw. But hey, at least you get a souvenir collection of your suffering that you can display on your mantle! Nothing says "I survived" quite like a jar of calcium oxalate crystals that cost you $3,000 in ER bills. Stay hydrated, folks - your kidneys have enough creative hobbies already.