  D5 only counts as deception cases of deception “by commission” (Chisholm and Feehan 1977, 143–144). According to Chisholm and Feehan, it is also possible to deceive “by omission” (Chisholm and Feehan 1977, 143–144). One may allow a person to acquire a false belief, or allow a person to continue with a false belief, or allow a person to cease to have a true belief, or allow a person to continue without a true belief. For example, one may allow a person to read a news story and acquire a belief that one knows is false (e.g., a news story about the CEO of your company resigning for health reasons, when you know he was forced out for mismanagement of funds), and one may allow a person to continue to have a false belief by not correcting the person’s false belief (e.g., not correcting a child’s belief in Santa Claus). Or, for example, one may allow a person to forget a veridical memory by not stopping them from getting distracted, and one may allow a person to continue without knowing about an earthquake that has occurred in a foreign country. According to Chisholm and Feehan, there can positive and negative deception by commission and by omission. A modified definition of interpersonal deception that incorporates this objection is the following: