These are my neighbour's horses. As she only has an acre field, she brings them over onto our empty land every two weeks or so spring, summer, and fall to allow her field to recover. When I run past at the begining and end of my 5K loop, all three of them run along the fence, pacing me. If they're not right at the fence when I pass -- they've got about seven acres to wander in here -- the sound of my shoes hitting the asphalt will bring them.
Running with horses makes me happy.