Hi first time user of this site so here goes I have a border terier bitch 18mths old. She goes for long walks and enjoys being off lead however when she is on lead she can turn very nasty when other dogs approach. She snarls and barks loudly. I take her puppy traning twice a week and she has just completed her silver kennel club training award.

I've tried the stones in a bottle, water pistol and sharp "leave it commands" Anyone out there got any other ideas I could try.

She has such a lovely face and can be very loving but this problem is getting us down