A botanist arrives in the jungle to study rare flora, and when he steps off the helicopter he hears drums. Worried, he asks his guide about it, and the guide says, "That's no problem. Don't worry unless they stop."

He works there for a solid week, and gets used to the drums ... all morning, all afternoon, all evening, all through the night. And then one morning he hears ... silence. He searches for his guide, and finds him cowering on the ground, quaking in fear, hands clutched over his ears.

The botanist pulls the guide's hands away from his ears and desperately asks, "What happens now?!"

The guide's upturned face displays and mask of terror and tears, and he says in a voice quavering with fear, "Bagpipe solo!"