look over your shoulder
look over (one's) shoulder
1. To be suspicious, paranoid, or fearful about some danger or harm that may befall one. He may have escaped the police for now, but he'll spend every waking hour looking over his shoulder.
2. To monitor someone's actions, activities, or behavior to ensure it is correct or following a prescribed standard. Major corporations are opposing the legislation, wary of having the government constantly looking over their shoulder.
look over your shoulderbe anxious or insecure about a possible danger.
1990 Daily Star The chief executive…toasted the lifting of the takeover threat. ‘Now they can get on with running the business while not looking over their shoulders,’ says one city analyst.