It started out innocently. There was a piece of metal sticking out of the fire lane. I thought I could pull it out. I couldn't. I thought I could quickly dig it out. I couldn't.
Three visits and about six hours of digging later, I unearthed several pieces of metal that would have been easier to pull out if a lawnmower hadn't been buried on top of them. The hole was big enough for my coffin. What a job.