[Restorer]

The author is absolutely correct.

If you don't believe me, buy a UV light, go into the bathroom and turn off the light. In the darkness, the urine spots will reflect the UV yellow.

Public johns are especially fun to inspect using this method. How do guys get it 6 feet up the wall?

Even more fun is to line up a group of men, turn out the lights and shine the UV on their shoes and pant legs.

Yuck!

From someone who still pees standing up, but doesn't lie to himself about how messy it is.

[Dog Gone]

Well, I have to confess. I'm one of those guys in the public restroom who aims at least six feet up the wall. Seven or eight if I really have to go.

I didn't think anyone would ever notice.

[EternalVigilance]

If you don't believe me, buy a UV light, go into the bathroom and turn off the light. In the darkness, the urine spots will reflect the UV yellow.

You have WAY too much time on your hands...

[ErnBatavia]

As kids, we lads used to love the rides at Disneyland that used the black light - got great giggles over being able to easily spot the "dribblers"...