Most professionals deal with market sensitive data or some secret company product or project or defense related work or company mergers etc. We are all required to maintain secrecy of such data as condition of employment or SEC rules. I never discuss company information with any of my family members or friends, nor discuss work related issues. A certain discipline needs to be exercised. If I bought or sold a stock based on some market sensitive information I receive, both I and my family member could go to jail. It is thus best not to get into such situations.