Years ago, 1990s, a sheep turned up and made herself at home, I didn't have anything back then so quite happy for her to eat the grass off.
Local AH chap happened to call by (or did someone call him?), and said, 'well, looks like it's yours now', and sent me all the paperwork, couldn't check her ear tag, soay type, wild as wild.
Wonder what would have happened these days?