Ok picture yourself in the middle of the desert. there are no people/animals in a 10 mile radius and hm..you heard you should drink a lot while in the desert right? So you did. and now you have to go!! You're a guy so it should be a problem really. You walk off to the side of the road and go about your business.
What happens? A ranger comes and almost gives you a ticket because you didn't (I quote) "Hid behind something" Behind what exactly? Your own shadow? Now..really!
No place is as depressing and thrilling as a deserted place which only function used to be to gather people.