For more than 20 years, GRIS-Montréal (Groupe de recherche et d’intervention sociale) has been dedicated to demystifying homosexuality and bisexuality through workshops in schools of Montreal and surrounding areas. Its 20th anniversary is a good opportunity to proceed to a critical assessment of its activities. Three challenges are discussed in this article: the impact of religious discourse on workshops’ reception, the importance of deconstructing gender roles in the fight against homophobia, lesbophobia and biphobia, and the taboo surrounding discourses on sexuality.