Originally Posted by
mr brightside
They went for you because you had a dog, if you'd have let it off the lead you may have diverted their attention.
Opening out your jacket to increase your visual size is the first thing i do.
Horses have lost their fear of humans because they have been domesticated, there isn't much you can do to scare a horse as a person on your own if you're acted on aggressively and the best thing to do is never to get into a situation with horses where you don't have an escape route.