And other weird pizza delivery facts …

“Paris Hilton” is the No. 1 fake name used by people calling for pizza deliveries, according to a survey of Domino’s Pizza drivers in Washington, D.C., released Monday by the pizza delivery chain.

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U.S. Attorney General John Ashcroft might want to open an investigation into these findings — he was No. 2 on the list of assumed names used by people ordering pizza.

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According to the survey of 630 drivers, nine percent of people who answer the door in the nude tip more than 20 percent, compared with 2 percent of people in pajamas.