Australian Shepherds typically do not handle being left alone for extended periods well due to their high intelligence and need for engagement. As working dogs, they thrive on interaction and mental stimulation. Prolonged solitude can lead to stress, anxiety, and potentially destructive behaviors as a manifestation of boredom or loneliness. To mitigate these issues, it's crucial to provide ample physical exercise and mental enrichment activities and, if possible, minimize the time they spend alone. Consistent training and establishing a routine can also help manage their anxiety when alone.