Barbara Lee, 45, thought the group was throwing up gang signs at her, and responded by flashing gang signs back at them, cops said.
The deaf men made the mistake of motioning to her to leave them alone. Well, she did, but came back with two members of her crew, 19-year-old Marco Ibanez and a 17-year-old who was not identified, according to police.
Ibanez allegedly pulled a knife and began stabbing Stewart and his friends. Who were taken to a hospital and treated for stab wounds.
Lee, Ibanez and the 17-year-old were arrested and charged with aggravated battery.