I told another dog owner that if his dog doesn't have a reliable recall then it should be trained in a quiet open field and to leash up when dogs are near especially on lead dogs.
And not to let it off lead in the woods because you cannot always see clearly all around.
His response was his dog needs a proper run and it can't get that in the local park without bumping in to another dog. (It's not the most friendly of dogs) and I'm beginning to get sick of his dog chasing / shoving mine and scaring him in the woods.