Even Uncle Joe gets angry sometimes.

President Biden has "a short fuse" at times, especially when aides and advisers are unable to answer his many hyper-detailed questions, current and former associates told The New York Times in a report published Friday. It's a description seemingly at odds with the congenial and easygoing persona the American public usually sees.

Driven by a strong "sense of urgency," the president is reportedly susceptible to "flares of impatience," and a tendency to "cut off conversations," per the Times. Occasionally, he's even hung up the phone "on someone who he thinks is wasting his time."

Yet he is also slow to make important decisions, often gathering advice and detail from "scores" of experts before sharing his findings in the self-assured, "plain-speaking" manner he presents publicly. "He has a kind of mantra: 'You can never give me too much detail,'" National Security Advisor Jake Sullivan told the Times. It's a difficult minefield to navigate, however; at risk of "an outburst of frustration," those fielding Mr. Biden's questions must go "beyond the vague talking points [the president] will reject" while also avoiding "responses laced with acronyms or too much policy minutiae." Advisers, aides and speechwriters become "hyperprepared" so as to avoid irritation.

Despite his displeasure when staff lack answers to reportedly "obscure" (but important) questions, the president is also "prone to displays of unexpected warmth." He never launches into Trump-esque "fits of rage" and frequently phones his grandchildren, who he calls "the center" of his world.

Read more at The New York Times.