A U.S. judge scolded both a scowling Donald Trump and an eye-rolling lawyer Wednesday in a trial where the "Apprentice" star is accused of making false promises to an investor.

"Let's get control of ourselves," District Judge Amy St. Eve said.

The testimony offered a rare inside look at the management style of the 66-year-old Trump, known for scrutinizing the competence of contestants on his TV show and them firing them.

Pressed over and over, the real estate magnate insisted he couldn't remember just when key business decisions were made or by whom, or even if he was present — telling jurors neither he nor his top executives made a habit of taking notes.

"We get things done. We don't write about it," he said.

The trial stems from a lawsuit filed by Jacqueline Goldberg, who agreed in 2006 to buy two condos at the Trump International Hotel & Tower in Chicago for around $1 million apiece.

A central issue at the trial is whether Trump plotted from the start of the 92-story tower's development to entice investors with a profit-sharing plan — fully intending to cancel the offer after they put their money down.

Goldberg seeks the return of a $500,000 deposit and other unspecified damages.

Trump accused her of agreeing to a buyers' contract that gave Trump rights to cancel the profit-sharing offer as he saw fit.

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Associated Press writer Michael Tarm contributed.