Wendy, well done.
I have gone the opposite way, 2 weeks ago, Minnie ran off, followed by Dennis. I shouted and whistled to no avail and charged off the field to see them both running back up a main road
Minnie has never done it before, I can only assume she saw a cat, but since then the park I have always felt able to let them off in has become a walk on lead area.
I has visions of them both being hit by cars on what is quite a busy road.