sorry for reviving an old post, but about pissing stones, I was told this:
If you drink lots and lots of cranberry juice it actually breaks them up. Our friend knew someone who was told by his doctor he was going to be passing a HUGE kidney stone within the next few weeks. They were construction dudes and all swore by cranberry juice, and they drank shitloads of it. So the cranberry juice actually broke up the stone and it didn't hurt or nothing! just a thought