The ad hominem fallacy makes an inappropriate reference to a person's character or behavior

Communications Nov 10, 2020

The ad hominem fallacy makes an inappropriate reference to a person's character or behavior. Give an example that shows how one may use ad hominem fallacy as an error in an argument.
Next, provide an example of a situation where making a reference to a person's behavior or character might be appropriate, and probably would not be ad hominem.
What are some ways that you can assess the differences between references to character as appropriate or as ad hominem?