When will people learn that families come in all different colors? Well, someone needs to start by teaching Southwest Airlines employees before a major misstep evolves into a major lawsuit.

The most recent gaffe by the airline took place a month ago when Mary MacCarthy, who is white, boarded a plane in San Jose, California, with her 10-year-old biracial daughter Moira MacCarthy to attend a funeral.

When the plane landed in Denver, MacCarthy and her daughter were swarmed by police officers and a Southwest staff member on the jet bridge. MacCarthy says she initially thought the police were there to inform her about the death of another family member. Instead, police separated her and her daughter to question them following a report of a suspicion that MacCarthy was a potential human trafficker and her daughter was a victim.