Read the following context and answer the question.
Context: She felt like giving him an even harder kick , but her horse stayed stubbornly a few strides behind his no matter how she slapped its sides . " Do n't tell me to shut up ! You know what you said ! " He rolled his shoulders .
Question: What is the reason her horse would have stayed stubbornly behind his horse ?
Answer:


Well trained horses know not to interfere with another horse / rider and maintain a sociable distance .