Physicist Russel Targ discusses the Ad Hominem Argument often used by skeptics. Watch here excellent youtube video. I have seen this argument many times by skeptics, in skeptic forums, where they no longer are able to refute the evidence but resort to attacking the character of the person instead. This video is all about refuting this common argument that skeptic's use. Main point is it isn't an argument at all but a way to attack the person's character because it's easier to do then try and refute the evidence presented.