Our 10-year old Border Collie came from a rescue centre about 5 years ago, having been previously ill-treated. She has always been very fearful of people, dogs, sticks, balls,buzzing insects etc ----- has even been chased by a mouse !------ but has developed into a loving and obedient pet to my husband and I. She would never play however, even with us, although we have watched through a window as she plays by herself ------ pulling apples off trees and using them like a ball, thowing small sticks into the air and pouncing on them but as soon as she realises we're watching she stops and slinks indoors as if she has done something wrong. She loves to run but will only do it with me or my husband, when she gets very excited ; energetic grandchildren have spent hours trying to win her confidence to no avail. In recent months she has started leaving our property ( we have 3 acres ) and wandering across roads and we are naturally very worried as she has absolutely no road sense and we are doubtful if she could find her own way home. Every time we've noticed she was missing we have had to drive around to find her and bring her back. We are in our 70s and I've recently had a hip replacement and my husband has knee problems, which naturally has restricted our ability to run with her. Is it boredom which is making her wander and can anyone suggest anything we can do to stop the dangerous roaming? She is very precious to us, but we feel we are letting her down through no fault of our own.