Supreme Court Justice Amy Coney Barrett told lawmakers Tuesday that a sharp increase in threats targeting her and other justices is increasingly encroaching on their personal and family lives.

During a rare appearance by justices before Congress, Barrett said she had to wear a bulletproof vest home a few years ago, something she struggled to explain to her 12-year-old son.

“I didn’t expect that performing this service would put me in the position of explaining to my children what a bulletproof vest was, why I had to wear one,” she said.

She and Justice Elena Kagan testified before a House appropriations panel in support of a request to increase security funding for members of the nation’s highest court.

Judges around the country have seen a rise in threats of violence and intimidation. Barrett’s home was also targeted by a fake swatting call to police in May.