Many Aussies today still do the work they were bred for, and even those that have never seen sheep or cattle usually have a strong herding instinct. This means that Aussies need fenced yards, and leashes, as the temptation to herd dogs, children, and traffic can simply overwhelm them. Being bred to work hard all day means that most Aussies are not content to be couch potatoes, although Aussies have individual characters and some are more sedate and quiet natured than others. For the most part, however, these are high-energy dogs who need a purpose in their lives, a job, as it were. Owners must be committed to give these dogs the time and attention they require through play and training.
Undirected energy can turn towards destructive behaviors, such as digging and chewing.
Running, jumping, and rough-housing are all a part of being a normal Aussie. The great intelligence of these dogs, necessary to out-think and control livestock, can be detrimental when left untrained and unused. Aussies are quite capable of out-thinking their owners. Obedience training is highly recommended as a means of teaching owners how to channel the typical Aussie's innate desire to please into appropriate behaviors. Aussies learn very quickly.