What behavior might indicate that a service dog is experiencing stress in a public environment?

Excessive panting and pacing are key indicators of stress in a service dog, especially in a public environment. When dogs experience anxiety or discomfort, they may engage in specific behaviors such as these to cope with their distress. Panting can signify that the dog is overheated or anxious, while pacing reflects a need to move due to restlessness caused by stress. These behaviors can disrupt the focus and effectiveness of a service dog, as they are trained to remain calm and attentive to their handler's needs. Recognizing these signs is crucial for handlers, as it allows them to address the dog's needs promptly and ensure a conducive environment for both the dog and the handler.