It took me many years of growing before I started down the breeding road as well. It's amazing how far this pollen can travel, so you're probably right, that could have floated in from neighbors a mile away. If it was from a true male, that is cool because that seed now has the ability to either be male or female. If you can get other plants and then this turns out to be a male seed, you can at least make more seeds with it to get your adventure going. I prefer buying "regular" seeds for this reason. True you do waste some time growing plants that turn out male if you only wanted females, but I'm always looking for a good male. Something that has great structure, smell and in some cases resin production. If you find a winner, you can start a breeding project.