As a kid, I had to repaint an old bike body that had been left out in the elements for months. I picked up the rusty body, rinsed off the dirt with a hose, let it dry and spray painted it. The shiny red bike looked like new.

Of course, after several weeks, the rust came back with a vengeance. Being lazy, I’d touch up the paint every few months to keep it looking decent. But, since I didn’t take care of the hidden corrosion, the rust wouldn’t stay covered up for long.