Jessy is a rescue I have had for 2 weeks. all canines are shi-tzus but Id bet Jessy is a mix maybe a jack Russell she jumps and leaps like a Russell. All canines are rescues I’ve had for 2-3 years. So far no training just verbal discipline. Both back legs are in bad shape with hip displaysia and torn cruciate ligament so I have been using a beep and zap to stop her from using the stairs.