AdoreMyDogs,
Had the same problem when my GSD/Huskey was
off leash...Even with a leash he would pull me after him once he spotted a cat,squirrel,
bird,whatever..Had to watch him like hawk
to see things before he did and anticipate
his moves so i would not be caught off guard.
He is know completely "leash trained" to
respond & obey commands, but flunked his
"off Lead" training.He can only "run free"
in his own fenced yard & nowhere else...

Dixieland Dancer...
Can you not go ahead & post your ideas
or suggestions about this problem now???
I love to learn new ideas. Thanks.