What external factor, if frequently indulged, can cause a Corgipoo to practice their inherited alert system excessively?

Answer

Being left alone in a yard where they monitor neighborhood activity

If a dog is frequently left alone in a yard to monitor neighborhood activity, they will often bark at every passing dog, person, or squirrel as a way to practice their inherited alert system.

What external factor, if frequently indulged, can cause a Corgipoo to practice their inherited alert system excessively?
DogbarkSoundtemperamentCorgipoo