The person who told me about the wondrous effects of urine on fruit trees used to perform his "duty" religiously. But come to think of it, that poor tree NEVER looked healthy!

judge a tree by the fruit it bears eh
I have a lovely little lemon tree (which has never been, ahem, watered in such a way) that must be the most amazing breed known to man, it's been root bound, dehydrated, dug up and replanted a zillion time, survived clay soil, pestilential insects, it even moved house/cities with me! It's still growing strong but sadly it has never born fruit and I doubt it ever will.
Note: The aformentioned mistreatment of lemon trees is not recommended by me or my affiliates and in no way was the fault of this humble gardener.
"Just a spoonful of sugar makes the medicine go down..."