At first I thought it was an RC plane, circling, losing altitude over a field to my left. Then I realized it was too big to be an RC plane. I'm thinking, why is this guy doing low circles over a crowded residential area? He was losing altitude, fast. Then he appeared to be setting up to land on the six lane arterial road, right in front of me! He was probably about 250 AGL before I heard the engine power up, and then climb out in the general direction of the Lincoln airport. I think the other cars probably thought I was crazy when I was slowing down and pointing upwards with my arm out the window. It might have been a practice engine out. If it was, it was a terrible place to practice one given that it was smack in the middle of the burbs, and the terrain of the open field probably would not result in a walk away landing, should things go south. That was my excitement for the day. Well, then there were the Burger Girls.