[header] How to defend yourself against prejudice [title] Recognize prejudice. [step] Prejudice occurs when the person you're dealing with has previously developed notions about some aspect of your identity without ever having met you. [title] Know when the fight is worth it. 
[step] Some people with prejudices have had them for a long time, so it's unlikely that you will be able to change them in a course of a day. Sometimes the best thing, if it's possible, is not to engage at all.