[trapexit]

One of our border collies comes from a working line; both of her parents were working sheepdogs on a farm in Ireland.

We once walked her through a field in Scotland that had a couple dozen sheep scattered about. Of course we kept her on a short leash and stuck to the public footpath.

Nevertheless, by the time we'd reached the other side of the field, she had somehow managed to round up the entire flock.