Quote Originally Posted by ermitonto
Why? Even if he pissed on his hand, urine is a sterile liquid. I'm guessing all he did was touch his penis, and your penis has a lot fewer germs on it than other parts of your body you touch all the time, like your face.
I just posted this tonight, also.

It is the byproduct or waste fluid secreted by the kidneys, transported by the ureters to the urinary bladder where it is stored until it is voided through the urethra. Urine is made up of a watery solution of metabolic wastes (such as urea), dissolved salts and organic materials. Fluid and materials being filtered by the kidneys, destined to become urine, comes from the blood or interstitial fluid (Interstitial fluid consists of a water solvent containing amino acids, sugars, fatty acids, coenzymes, hormones, neurotransmitters, salts, and as well as waste products from the cells).

The remaining fluid contains high concentrations of urea and other excess or potentially toxic substances that will be released from the body via urination.

Urine flows through the following structures: the kidney, ureter, bladder, and finally the urethra. Urine is produced by a process of filtration, reabsorption, and tubular secretion.

Not to mention the guy's greasy penis.