My stockhorse Vodka will sometimes stand and let me catch him, but most of the time he runs away, it comes from being treated harshly by stationhands at his old home. He gets really nervous when running. When i'm trying to catch him I normally work him like im a horse working a cow. Use my body to block him, just by getting into his line of sight, turn him the other way, if he runs the other way block him. Its like a horse working a cow out of the yard or out of the mob. When he stands, I will walk up to him and if he runs I will repeat. Eventually he just stands and lets me catch him, I always make sure I pat him and cuddle him to show he is a good boy. I will sometimes take feed or carrots, but if he starts running, I will NEVER bribe him with food. I see this as a massive compromise, the hrose getting what he wants and not teaching him anything. This method works well for him as i'm not chasing him which would make him more nervous, but I am being the dominant one. Once I have caught him he is perfect and docile.