So my mare "tamma" will throw a huge fit if she is not in the front... I am a confident rider and ride out her fits, but I am looking for advice to get her to calm down and be ok with walking behind or next to other horses.... She is completely fine in the front but starts hopping/rearing if another horse passes her... we were walking our horses today and another horse passed her at a WALK and she threw a fit and started bucking... I've tried doing circles with her. But I use her on trail rides and need to get her calmed down.... sometimes our trails are to skinny for circles and bucking etc. so I want to work with her around the house with other horses so she will be ready to go back out on the trail, and it isnt always possible for me to lead on her... any help would be greatly appreciated!!! Its my fiancee's horse and he wants to get rid of her because she does that, I want to try to get her fixed because I love her to death!