Then I remembered going to a cottage and noticing huge rhubarb on a farm just I entered a small town, Burn River. One day I stopped and jumped the fence to take a close look.

The rhubarb was enormous, leaves like umbrellas and stalks as big as my arm. I wondered what variety it was.

Got back in my car and saw it. The farm was on a slope. The rhubarb was on the low side of the barn so all the urine from the animals fed the rhubarb.

So I collected my (male) urine and tried it on dad's rhubarb patch, it exploded to twice the size, huge leaves and stalks.

And it is much cheaper than buying a bag of manure.

BTW as a scientist I was looking through a NASA handbook and found male human urine is safe and sterile unless there is a urinary infection. NASA needed to know how safe it would be on a space mission.

There is a Finish study which showed that urine mixed with wood ash used on tomatoes outgrew untreated and treated with commercial fertilizer and, the price is right.