An example of bad faith might occur if a boss makes a promise to an employee, with no intention of ever keeping that promise. Another example of bad faith might occur if an attorney argues a legal position that he knows is false, such as his client’s innocence (or lack thereof). Someone can also practice bad faith against himself.

Some examples of bad faith include: soldiers waving a white flag and then firing when their enemy approaches to take prisoners (cf. perfidy); a company representative who negotiates with union workers while having no intent of compromising; a prosecutor who argues a legal position that he knows to be false; and an insurer who uses language and reasoning which are deliberately misleading in order to deny a claim.

A bad faith argument isn’t a logical fallacy per se, but in many cases, arguers use logical fallacies to support bad faith arguments. Common ones include: Ad hominem attacks Straw man claims Red herring arguments Appeals to ignorance Appeals to authority Slippery slope arguments