How does Sinita stray from the script in performing the play before Trujillo? What does Minerva do in response? Why does she take action?

At the point when Sinita is supposed to step forward and show off her bow and arrow, she breaks from the script and walks toward Trujillo's chair, taking aim at him. Ramfis jumps up, grabs her bow, and asks for her name. When she says it is Perozo, he realizes what family she is from, and he orders her to untie Minerva, saying, "Use your dog teeth, bitch!" Released, Minerva begins the chant, "¡Viva Trujillo!" Minerva takes this actions to protect herself and her family from repurcussions.