My personal nightmare scenario is an airport with left
traffic for one runway, right traffic for another. The
wind is calm or almost directly across, or else one pilot
decides to land or takeoff downwind for personal reasons..

Yipers!
Sydney

Happens here (00V) a lot. Glider activity to the west so 15 has left
traffic and 33 right traffic. Not to mention all sorts of different
approaches, different or no radio callout and this airport is
potentially dangerous.

Ron Lee