A tip for Herman Cain: If you ask reporters not to ask about an inconvenient topic, reporters will ask you about that topic. Every time. It's part of the deal.

Cain got testy with reporters at a campaign stop in Alexandria, Virginia, on Wednesday, when they pelted him with questions about allegations that he sexually harassed at least two employees while he was president of the National Restaurant Association in the 1990s. Cain has denied any wrongdoing.

"Don't even bother asking me all these other questions that you all are curious about, OK?" Cain said as he left a meeting in Virginia. "Don't even bother."

It wasn't two seconds before a reporter launched into a line of questioning about the harassment allegations.

"What did I say?" Cain, who was flanked by aides and bodyguards, interrupted.

The reporter kept asking.

"Excuse me," Cain said. "Excuse me!"

"What part of no don't some people understand?" he said to himself as he walked away.

According to CNN's Jim Costa, who called the scene "nasty" on Twitter, a Cain bodyguard at one point physically pushed members of the press out of the way.

Wednesday is the third day of Cain's Washington media tour. He plans to visit Republicans on Capitol Hill later this afternoon.

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