Two cowboys had been separated from their horses, their herd, and their fellow cowboys.
They hadn't eaten much for two days and they were getting hungry. All of a sudden, the first cowboy saw what looked to be a tree covered in bacon. "A bacon tree!" he shouted, "we're saved!". Both of the cowboy ran to the tree and gazed adoringly and in hunger at the branches. All of a sudden they were surrounded by Indians and shot dead.
Turns out it wasn't a bacon tree, it was a ham bush.