"If someone's arguing with you, the best way of refuting them is to call them a '

' or a 'Nazi'. ('Pedophile' is rapidly gaining popularity in this regard, too.) Make up wild and false accusations against them: "Mike just got out of prison for raping puppies, so he obviously isn't qualified to have an opinion about Unreal Tournament." Ignore their argument and attack their credibility: "Oh yeah? Why should I listen to someone who sells heroin to kindergarteners?""