A trained accountant, Mr. Leibner was described in a 1989 profile by Ben Yagoda in The New York Times Magazine as an idiosyncratic character with a “remarkable emotional range.” “He can be plaintive, cajoling, jocular, terse, profane, sentimental, jovial, respectful, dismissive, analytical or expansive: The one constant is the strain of his native Brooklyn in his voice,” Mr. Yagoda wrote.
He was also known for telling incredibly dirty…