Put in four or five flight on my UCD today, and when I was putting it back in the car, I heard a solid thumping coming from inside the fuse. The battery was no longer strapped down and was loose inside the fuse behind the wing saddle. It was hanging from the switch. Luckily, I had secured this connection with a piece of braided fishing line. If I hadn't done this, I think I would have lost the plane today.

Moral of the story: Secure all radio connections - it just might save your plane.

Leonard