Experts said Mr. Amendola needs to walk a fine line when questioning credibility so he doesn't come off as bullying alleged victims.

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It wasn't until Pejic was around the age of 8 or 9 that he recalls receiving the message that it just wasn't acceptable to exhibit these behaviors anymore, "because there was a fine line between how women behave and how men behave, " he says.

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"It's a very fine line you draw, whether it's new or it isn't, " says Peter Appelbaum , a pathologist at Hershey Medical Center and a professor at Pennsylvania State University.

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