The ONLY difference is the individuals involved. For the most part, horses are horses. Sure, there are individual personalities but they have rather consistent characteristics. Well, horses have a nature as well. Horses rear for a relatively small number of reasons.
Horses buck for a relatively small number of reasons.
Horses bite for a relatively small number of reasons. Horses bolt for a relatively small number of reasons. And so it goes. Eliminate the reasons and the problem stops. I am very good at eliminating reasons.