100% positive kidney stones. i have passed 14 in my life. i have a biological predisposition where i dont process some minerals correctly and have them about once evry 6 to 9 months. the first ones i ever passed the nurse said "i had twins then i had kidney stones a month later... id rather be forced to have twins again once a week for the rest of my life".....i think this was supposed to make me feel better. it didnt. imagine a pickaxe... wrapped in barbed wire... on fire. being swung into your side at a descending angle and the tip of it just barely passing out the end of your urethra with each swing... now imagine no amount of breathing, moving, running, screaming, crying, or passing out, can help you escape this pain. now call 4 different anestheticians to your room. have them all try different solutions and finally after four hours (your still conscious and screaming) they decide to hit you with a dellodad and morphine combo reserved for terminal cancer patients, you immediately vomit, and go instantly unconscious, and awake to the nurse shaking what looks like a 15 millimeter lumpy marble in your face, but its actually the stone. your penis at this point feels.....lets say uncomfortable, but you honestly dont care, because the process of the stone traveling out of the kidney down the ureter to the bladder is so excruciating that you wouldnt mind if you woke up dickless as long as you woke up pain free. at least thats my experience ( oh and ive also been through everything else ive read on this list. so i have a frame of reference).......
edit. ok i didnt read closely enough. whoever got their testes twisted to the point that they lost them or were going to and had to be knocked unconscious by the doc.......yea. you win. or whoever that was that you witnessed with it.. wins.
@person above who is passing a stone.. trust me once it moves into the bladder there will be a ton of relief for you, passing it is nowhere NEAR as agonizing as the movement from the kidney to the bladder. it will seem almost calming when you feel it start to uncomfortably move out of your urethra, because at least your entire insides wont be on fire anymore.