The Discordian road signs that Jet-Poop speaks of, are thanks to a man of riches untold who resides in Amarillo, who, for some reason, decided to place random roadsigns around the town. Some of the ones I have seen include,

Scissor Crossing

I'm The Biggest Baddest Drunk In This Town

STOP (staring at my mom)

Patrons Not Admitted Without Guns

And to top it all off, there is a leaning water-tower about 15 - 20 miles east of the town on I-40
A very strange, and wonderful town.