Document your accomplishments in clear objective terms
This helps prevent a co-worker or manager from taking credit for your accomplishments.
Monitor the climate of your workplace
A narcissistic worker can create high levels of emotional stress. Managers should watch for increased absenteeism, resignations, or lack of cooperative office behaviours and other signs that seem to be linked to a particular individual. Unfortunately, the narcissist could be your manager.
Beware of ‘red flags’ before you hire