Meredith
riding reluctantly into the sunset
I remember seeing a riderless pony hurtling towards a cattle grid after the rider had fallen off at a Pony Club Rally and the pony just cleared the whole thing! As you say, a heart stopping moment.
I have seen a pony and tiny rider trot across a cattle grid instead of going through the open gate. The child did not realise there was a grid. Pony negotiated it easily with each hoof placed on a rung. You would probably have heard the collective sigh of relief a mile away.