Overcoming grooming problems

horse-trying-to-bite.jpg
horse trying to bite when having her rug done up
(Image credit: Lucy Merrell)

Q: I own a six-year-old 15.1hh Thoroughbred mare who is good-natured until I try to groom her. She becomes irritable and fidgets when I brush her, often trying to bite me, and has occasionally lifted her back leg and threatened to kick me. How should I deal with this problem and how can I encourage her to relax and enjoy being groomed?