Rust? What Rust?

I was going to explain the rust on Ol' Blue, but I'm afraid that it would be impossible. I did put duct tape over the major holes in the tailgate so that the wind doesn't whistle when I go fast. But I discovered two large holes behind the rear tires in the bottom of the car. This led me to fear for the structural soundness of Ol' Blue (read: floorboards). An under-car inspection, though, showed the floorboards to be fairly sound. Basically, the worst of the under-the-car rust was where the body panels meet the floorboards. Oh well. I kept the window cracked when I drove, just in case!