One example of gaslighting is when someone denies that an event took place, even though other people witnessed it. For example, if you tell your partner that you saw them flirting with someone at a party, and they deny it ever happened, gaslighting has taken place. Gaslighting can also happen when someone tries to make you question your own memories or perceptions. For instance, if your boss tells you that you’re being too sensitive and imagining things when colleagues are actually excluding you from work conversations, gaslighting is occurring. This type of behavior can be damaging because it causes doubt and insecurity in the victim.