Just that really.....he is the world's worst pony..... he is horrid and grumpy on the ground and liable to throwing her off whenever he feels like it. When he's good you can see his potential but when he is bad he's just horrid and I'm never quite sure when he will throw in one of his broncing fits and ditch her...he's perfected the shoulder drop and buck to a real art. Do we persevere because dd adores him despite his faults and he will teach her to have a fab seat or move on and purchase something safer......more reliable....... said pony has had teeth, back everything checked there is nothing wrong with him he's just a demon pony!