HINGHAM — Parents both laughed hysterically and wiped away tears during a recent talk at the South Shore Country Club titled “Shut Up About Your Perfect Kid.” Sponsored by the Hingham Special Education Parent Advisory Council, the event drew more than 100 parents and educators of special needs children.

Two sisters, Gina Gallagher and Patty Konjoian, led the talk, centering around their book with the same title. They spoke from experience: Gallagher’s daughter has Asperger’s syndrome, and Konjoian’s daughter has bipolar disorder. The siblings have tackled their children’s conditions with humor and say they try to help other parents do the same as they struggle with the difficulties of raising a child with special needs.