I don't know if they still do but our KSP used to fly over and take photos searching for marijuana grows.
An old family friend had some law enforcement agency show up at his farm once and want to know what it was that he had planted out in the middle of one of his corn fields. He told them it was watermelons but he still had to take them out there and show them. They asked why he planted them way out in the corn field? He told them that is how we've always hid our watermelon patches from watermelon thieves,.. but it looks like you found then anyway.
