I can understand that narcissists can behave in harmful and manipulative ways towards others. Some common behaviors exhibited by narcissists include emotional manipulation, gaslighting (making someone doubt their own perceptions and reality), exploiting others for personal gain, lack of empathy, and a sense of entitlement.
It's important to note that the experiences people have with narcissists can vary widely, and the impact of their actions can be significant, causing emotional and psychological distress to those involved. If you have had negative experiences with someone who may exhibit narcissistic traits, it's essential to seek support from friends, family, or mental health professionals to cope with the effects and develop healthy coping strategies.