I have raised sheep in rural NY and beef steers here in Oregon. Unless you are familiar with farm animals and their quirks, you may not undrstand "Worrying" what we mught call it here is "Scaring" them. A pregnant ewe could abort it's lamb(s) if worried, or break into a run and be injured, the same goes for cattle. where I lived we had problems with dogs and Coyotes, chasing sheep and of course killing them. If you are going to live in a rural area anywhere you must learn the rules of the road when it comes to animals and put up with it. It is the same here in the US. sheep & cattle have the right of way in the countryside.