Really I wasn't talking about a young dog to be honest any dog can walk at any time you never know but what you described letting a young dog run in at the end after a dig wtf does that proof nothing what so ever and you will never know what you have by doing such things and then you say it will get a taste for it bollocks and as for why dogs don't make it because of it bangers have a day of you have no idea how to enter a terrier or work one to its strengths