When you end your flight, do you click on "tower" on the clipboard, or do you type ./ef and Enter? Reason I ask is, if you are in the tower and hit the Enter key, the button on the clipboard that is highlighted while you are in the tower is the "H" key, it sends you to the hanger in the last plane you were in and ready for takeoff. If you have a sticky Enter key, or accidentally hit it twice, etc. it would cause you to go right to the hanger for takeoff when you go to the tower.
