Bystander intervention is a type of training used in post-secondary education institutions to prevent sexual assault or rape, binge drinking and harassment and unwanted comments of a racist, homophobic, or transphobic nature. A bystander is a person who is present at an event, party, or other setting who notices a problematic situation, such as a someone making sexual advances on a drunk person. [1] The bystander then takes on personal responsibility and takes action to intervene, with the goal of preventing the situation from escalating.