A Case of Call and Response
 

[URL="http://www.washingtonpost.com/ac2/related/topic/Jim+Zorn?tid=informline"]Jim Zorn[/URL] does not swear, so he must devise a term to describe those moments in a [URL="http://www.washingtonpost.com/ac2/related/topic/Washington+Redskins?tid=informline"]Washington Redskins[/URL] game when [URL="http://www.washingtonpost.com/ac2/related/topic/Jason+Campbell+%28Football%29?tid=informline"]quarterback Jason Campbell[/URL] comes to the sideline, the situation gone awry. "I get kind of 'grindy,' " Zorn said one day last month. He kept his teeth nearly clenched, his jaw tense and moving slightly front to back. Continue, and he might need dentures by season's end, his teeth withered to nothing.

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