mind one's own business

Definition

To concern oneself only with what is of interest to oneself and not interfere in the affairs of others.

Example Sentences

• "I was just walking down the road, minding my own business, when I was attacked by a mugger."
• "The idea is but too prevalent in almost every community, that a man has discharged his duties as a citizen, well enough, if he minds his own business and does not meddle with the affairs of his neighbours. "Look out for Number One," is a great fundamental maxim, which is in every body's mouth, and which every body takes credit to himself for acting upon. It is preached to us sometimes from the pulpit even, and Christians, as well as infidels, pride themselves upon the assiduity with which they can look out for "Number One.""
• "Strolling along, minding my own business Well, there goes a girl and a half"