Rejuvenates fear the backlash caused by bad drugs: they want nothing to interfere with their pursuit of long life—or the profit that comes from promising it to others. Neighbor states fear the aggressive expansion of the Familias Regnant fuelled by population growth and extended lifespan. Within the Regular Space Service those who have received experimental rejuvenations fear they may have been intentionally given bad drugs. Esmay Suiza's family fears that her marriage to an offworlder will damage their position. Barin Serrano's family fears that his marriage to a Landbride of Altiplano will damage his career and their reputation. Fear begets violent reactions.