How Do You Stop It NOW?

"Here's a simple test. Give a dog trainer a common problem like not having a reliable recall, barking, leash reactivity, or jumping up on guests. Ask him or her how they will work to solve that problem in a quick and efficient manner. What would they do to stop that behavior NOW? How will they PROOF the behavior so that it remains solid?"

This is the first (and often ONLY) question you need to ask a prospective self-described dog trainer.