The index to Hyatt's "Folklore Fromm Adams County, Illinois" lists 77 entries for "Urine," not including those for "bed-wetting" and "kidney trouble." Here are a few more interesting entries of the non-human variety:

4015: A bullfrog wetting on you will give you warts.
4645: If you step on the ground where cows wet, you will get ground itch, that is, your toes will crack.
4557: Drink the urine of a goat for a kidney complaint.
5477: Let a person with weak lungs drink "billy goat" urine.
4250: Let a toad wet on your wart to cure it.

Some human ones:

5012: Treating an ear with urine will cure deafness.
9244: "If you want your man to give you all of his money, take a pinch of salt, a pinch of red pepper, and put it in a cup of chamber lye and sprinkle it around in his room. Do this every day for a week and he will give you all of his money."
5584: If you accidentally take poison, rink urine to cause vomiting.
8778: If a gambler is losing, he will pick up a bay baby and let it wet on hime. He thinks that will change his luck and make him lucky.

You too can pick up a copy of this book and learn even more! And...it's all from the area where I (and Mark Twain) grew up!