Gaslighting is a manipulative technique used to make someone question their perception of reality. The name of “gaslighting” comes from the title of British playwright Patrick Hamilton's play „Gas Light” and people who use this technique are called “gaslighters”. There are several ways to spot a gaslighter like the fact that they never take responsibility for their actions and do everything to isolate you from everyone else. Nobody is born a gaslighter but becomes them due to social circumstances. However, it is important to understand how to deal with one if you had the misfortune to meet them in your life.