Ive got a 14 month old JRT bitch. Her behaviour is spot on, she has a half decent recall, and she works spot on. When im out with her and the ferrets she rarely goes more than 50 feet away from me while shes looking for holes or in the bushes and a whistle will bring her back to me. The problem I have is for some reason if i was to leave the garden gate open or take her off lead while im walking around the streets she would just bolt. And i mean no looking back, just one straight line with no stopping her. Do you think this is just with her age? Like i say, put her in a field or a forest and s