Source:
http://www.pawnation.com/2009/05/21/service-animals-pets-helping-people
 
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Have you ever seen a woman ride a horse into a grocery store?
You might if you lived in Fort Worth, Texas, where Tabitha
Darling, a legally blind woman with a deteriorating bone
condition, relies on her horse Trixie to help her get around.
Donning bright pink, slip-proof boots, Trixie regularly
escorts Darling to the local store.