Jungle Drums

A guy goes on a trip into the heart of Africa. Not long after he and his native guide leave the port in their small boat on their long journey upriver into the deep jungle, the drumming starts. The traveler is spooked.

"What does all that mean?!" he asks his guide.

"Okay as long as drums keep going", is the answer.

All day long the first day, the drums are heard with not a single respite. The pounding continues through the night, unabated, to the hunter's discomfort - he's still not too happy with this, despite the guide's assurance. All day long, the second day, they continue. He asks, again, if this isn't something they should be concerned about. Once more he's told that the drums are no problem. Shortly after dawn on the third day, the drums stop!

Now the guy's freaked, and asks, "What happens now?!"

"Worst part now..." replies the guide, "...bass solo!"

Odds...