Wilma-New to being in a herd after 4 years as an only horse

Question
I just bought Wilma in Oct 2010.  She is a 12 year old quarter horse paint.  She has a bad habit of when it's time to come inside from dry lot with other horses she will run up and down the isle of the barn.  All the other horses will go in their stalls to eat hay and grain but Wilma just wants to run up and down isle and stay by her new horse friends.  When she is turned back out in the morning she is happy to be back with her friends.  The lady who brings the horses in is scared of horses and not that Wilma hurts anyone but Patsy (Barn manager who is scared of horses) is upset at what Wilma does.  Wilma is a sweet girl who is too excited to be around other horses again.  I guess my question is what can I do to change Wilma's behavior?  On days I go to the barn I do work with Wilma is the barn to go in her stall and after a few tries she goes in.  You'd think after 4 months she would just want to go into her stall for her dinner..  Patsy (Barn manager) suggested switching Wilma's grain?  She thinks corn gives horses energy.  I myself have never heard that??  Any suggestions would be great!
thanks
Bridget & Wilma

Answer
Hi Bridget,
Thank you for writing in with your question.
Oh I love quarter horses and especially paints. So you have the best of both worlds. Nothing against other breeds but those are my favorites. Now, on to your question.
It sounds like your mare has a very bad case of "buddy sour". This can be fixed with "make the wrong thing hard and the right thing easy". By this I mean make being with the herd alot of work and being away from the herd rest. I would suggest working with the horse in or near the barn (depending on how long your alley's are) with a backing exercise. Backing is a lot of work for a horse. Take your horse to the stall. If your horse refuses to enter, immediately start backing her for quite a while. Back her completely out of the barn and further. Then take her back to the stall as if nothing happened. If she does it again.....back her again. Keep doing this over and over. Make it so much work to be near the herd she craves being in the stall.  At first after the work, just let her stand there and smell and rest near the stall. If she steps in the stall, let her stand there for about 30 seconds and then back her out and put her back to work. Next time yo take her to the stall and she puts two feet in, back her out and back to work. If she does go all the way in, back her out and put her to work. After a while you will find that she will crave to be in her stall. Because that is where she gets left alone and doesn't have to work. You can also do this by just hustling her feet, forwards, backwards, left and right. She needs to be huffing and puffing when you get through. Make it work for her to be wrong and rest for her to be right. This also works for trailer loading problems, wash rack problems or anywhere else the horse doesn't wish to go.
I know this is a short answer but the answer to your problem is short.
As far as the corn being the problem. I would disagree. The problem is not in the stomach but between the horse's ears. Yes corn is a starch. Starch turns to sugar when it is digested and sugar gives energy. The excess starch turns to fat. She sounds like she is calm except for the stall issue. So I would not contribute her actions to the corn.
So remember, make it work and tiring for your horse to act out when trying to load into something and rest near or in the "something" you wish to load her in. Hope this makes sense. And I hope I have answered your question. If you need me to go into it further please feel free to email me and we can get deeper into the problem.
blpdoc82652@yahoo.com
You can also read more about me on my website:
www.yazooequinetraining.com
Thanks for writing