We read that European philosopher Immanuel Kant (1724-1804) argued that people should do what is morally right no matter the consequences. (The term categorical means "without exception.") His approach to moral reasoning is the best-known example of deontological ethics. Deontological ethicists argue that we ought to make choices based on our duty (deon is the Greek word for duty). Fulfilling our obligations may run contrary to our personal interests. For example, revealing a product defect to a potential customer might cost us a sale but is nevertheless the ethical course of action. 

Discuss at least two other examples of practicing deontological ethics.