why keep a dog and bark yourself?

成語所屬單字dog

why keep a dog and bark yourself? — 慣用語

1. If someone else can do a task for you, there is no point in doing it yourself.

1.慣用語
釋義

何必自己動手

If someone else can do a task for you, there is no point in doing it yourself.

例句

Why keep a dog and bark yourself? Let the assistant handle it.

He does all the work himself, but why keep a dog and bark yourself?