What can you find on the runway? People. Animals. Aircraft parts. Car parts. Chunks of tires. Asphalt. Paint. Lights. You can find on the runway just about anything that you might find someplace else. I've encountered people, deer, skunk, moose, elk, horses, various pieces of airplanes, rabbit holes, coyotes, other aircraft, cars, people in tents (not a good place to camp, as they learned), parachutes, signs and barricades, cables, and all sorts of other things.
What did you find on the runway?