Should you use a training collar on your dog? It's a question that divides pet owners and sparks heated debates online. In this episode, professional groomer Jasmine Caldwell draws on nearly a decade of hands-on experience with reactive, fearful, and stubborn dogs to cut through the myths and marketing hype. She breaks down exactly how these devices work, which types exist, and most importantly, how to know if one is right for your situation.

• Training collars come in several different types, not just "shock collars." Some use a gentle vibration like a phone buzzing in your pocket, others spray citronella mist, and some emit high-pitched sounds only dogs can hear. The electric versions range from a barely noticeable tingle to something stronger, with dozens of adjustable levels.

• The collar itself is neutral—it's t ...