I bought an adjustable half check chain collar from the Dog Training School we attended.

Duke was very quick to learn that pulling forward tightened the chain so he would stop suddenly and the collar would slacken back up fast to make his clean getaway.

Fortunately I knew my dog and only used it at the training school or back garden.

I use a full harness but I have to be on my guard because he can slip those too. I can't allow him to pull backwards which is very difficult because if I pull him forward at the same time he's free. I should have called my dog Houdini.

If he starts to pull backwards I have to go with him to let him think he has his own way then grab the lead close to his harness keeping the lead straight up and guide him in the direction I want him to go.

Sue