horse is 50% angel, 50% devil. sometimes i can do whatever with her & she doesn't put a foot wrong, other times, like last night for example, she's not having any of it! if i hack her out she gets a minute up the track & plants herself to the floor, refusing to move forward, schooling she stamps her feet, bucks & generally plays up. if i try to canter, she bolts to the gate, so i have to resort to lungeing! very irritating! who else has this problem & what do you do to overcome it? also, on devil days, i seem to have minimal brakes (she's quite strong anyway). thinking of a bit change. the nose pokes out in walk & trot & her head is up & down like a yoyo but, in canter & jumping, her head goes down & she's off!! all suggestions welcome cheersx