Hello I'm had my horse for about 7 or 8 years now but she recently started developing a worrying problem which could make it difficult if i ever tried to sell her on. When I first bought my mare, she was as good as an angel when tacking up, brushing ect if a little speedy when riding but lately she has become very grumpy when we try to fasten/tighten the girth. A couple months ago she just started putting her ears back and maybe threatening to bite but now she has bitten my mother once or twice and has tried going for me. In fact if you even put your hand near the girth (like lengthening the stirrups) she becomes very grumpy. She is fine as soon have you have finished doing whatever and back to her loving self. Does anybody have any suggestions as of to why she might be doing this or how to stop it? I will provide some extra information if needed Thankyou.