Anthropologists have engaged in a sustained discussion on the parameters and temporality of ethical life. If one understands the ethical as intrinsic to ordinary acts and practice, rather than solely evident in moments of crisis or ‘discursive interaction’, then ethnographers have been tasked with better describing and locating practical judgment in the lived experiences of their interlocutors, who daily encounter existential ambiguity. In situations where chronic violence makes crisis itself quotidian, and the appearance of ‘moral breakdown’ is mundane, the waters of anthropological ethics become even more muddy. This article takes up that consideration by examining ongoing ethical projects amongst Acholi residents of socially disrupted northern Uganda, where ethnographers are also called to relate and deliberate. It describes the problem of purported spirit attacks and witchcraft at a secondary school for girls in the town of Gulu, which many of the pupils judge to be the work of lute ceto pii (‘those who go underwater’), a category of devil worshippers thought by many Ugandans to be the source of ill-gotten wealth, power and fame, to cause misfortune, and to signal an imminent end to life as they know it. Reminiscent of the slave revolt detailed by Nietzsche, wherein a new type of morality is founded upon a ressentiment of the powerful, in contemporary Uganda acts of acknowledgment, passion, irony and ritual nevertheless reflect ethical underdeterminacy. I argue that interpreting and responding to such rancour is a question not just of tracing the genealogy of moral sentiment or indignation, but of acknowledging and acting (despite) the underdeterminacy of affective forces that inflect the palimpsest of Acholi ontologies.