Two guys are stuck in the desert.

Close to death, lying down and waiting for the inevitable. When all of a sudden one says, “Hey Bill, do you smell what I smell? I’m sure it’s bacon!” ‘Yes, Bruce, it smells like bacon to me.’ So, with their last resources of energy, they crawl up the next sand dune, and there, in the distance, is a tree loaded with bacon. Bill races towards the tree. As he approaches, there is a rattle of machine gun fire, cruelly cutting him down. “Bruce, go back!” he cries as the life ebbs out of him. “It’s not a bacon tree. It’s a ham bush!”