Haa! Too funny.
My husband and I were about 8 miles from Taos, NM on a drive from Colorado to TX a couple of summers ago. I had to go #1 really really bad and when I saw the sign 10 miles to town, I made myself imagine that I didn’t need to go to the bathroom. WELL, we come around the corner and there is a bridge over a canyon and all traffic has to stop! So, for 1 hour we had to wait for some guy to be gently talked off the bridge. I almost had to go to the hospital as there was NO place to relieve myself since it was desert and no cactus over 4 feet!