Appeal to spite (also called argumentum ad odium) is a logical fallacy in which someone attempts to win favor for an argument by exploiting existing feelings of bitterness or spite in the opposing party: A logical fallacy is an error in logical argument which is independent of the truth of the premises. ...
"By voting for my proposal instead of Jim's, you'll finally have a chance to get back at him for running over your dog!"
"Bill Gates dumped you back in high school. Therefore you should never buy any Microsoft products."
Spite can often be taken to illogical extremes, and result in very poor decisions. The classic phrase "cutting off the nose to spite the face" is an example of flawed, spiteful logic. Cutting off the nose to spite the face is an expression used to describe a needlessly spiteful or self-destructive overreaction to a problem. ...
An appeal to common practice uses the approach that something is permissible (or not) because "everyone is doing it." But here, the argument is that George's report should be graded, at least in part, not on its quality but on the effort he put into it.
Not all fallacies with negative outcomes are appeals to fear.
Were this an appeal to fear, there would be either an implicit or explicit threat of illness on the basis of meat-eating.
Appeal to spite (also called argumentum ad odium) is a logical fallacy in which someone attempts to win favor for an argument by exploiting existing feelings of bitterness or spite in the opposing party:
Spite can often be taken to illogical extremes, and result in very poor decisions.
The classic phrase "cutting off the nose to spite the face" is an example of flawed, spiteful logic.