I suppose there's slightly more to it than that, in that I've always been interested in the people who went before. At the age of eight I loved old bottles so I got all the old maps for the town I lived in and found out where the rubbish dumps used to be (in the olden days - Victorian times, I guess), then went there and dug up the bottles I sought!
Living in the countryside for most of my life's probably got something to do with it, too...