My horse Dezzi is wonderful to ride.. until she doesn't understand what your asking her to do. Most horses would get worked up or buck, bolt, rear etc. but Dez just shuts down. Its like as soon as she gets scared or doesn't understand something, she goes into her own little world. None of the horses i have trained in the past have done anything like this, so I am struggling to reach her. If anyone has any tips on how to get her to respond once she shuts down, that would be great!