Comment by ben_w

Imagine you're standing on a simplified earth that's a perfect sphere, with no air resistance, and have a gun that has a muzzle velocity of orbital speed.

There are 40,000 SUVs randomly located on the planet.

You fire randomly in the horizontal plane.

What's the probability of you hitting an SUV, and not yourself in the back 84 minutes later?

The earth is big. The probability isn't zero, but for any given orbits period it is low. And both the ball bearings and the satelites will re-enter after a while.