Judge has an answer for jury prospect's invoice Computer consultant tried to bill federal court $16,800 to keep August open for duty 08/15/2002 Associated Press SAN ANTONIO - When computer consultant David Williamson was summoned for federal jury duty and told that he should keep August free of commitments, he replied he was ready to serve at his normal rate of $100 an hour. He prepared an invoice, charging the government for "court-ordered professional services for the entire month of August 2002." His bill came to $16,800 $100 an hour, eight hours a day, 21 days during the month...