Frank Jacobs, The Mad World of William M. Gaines. NY: Bantam Books, 1973, p. 77—
In the fall of 1954, [William M.] Gaines [founder and publisher of MAD Magazine] and Nancy [a close friend and staff member] were turning into a gas station on West 96th Street in Manhattan. As they made their turn, a car came down the street and barreled into them. No one was hurt, and Gaines exchanged the usual insurance data with the driver of the other car, whose name was Gene Zahn. About a year later, two blocks from the gas station, Gaines pulled up to a newspaper stand. After buying his paper, he returned to his car, backed out a few feet, and was struck by a car rounding the corner. No one was hurt, and Gaines exchanged the usual insurance data with the driver of the other car, whose name was Gene Zahn.
“Didn't we have an accident a year ago?” Gaines asked.
“I believe we did,” answered Zahn, giving a polite nod to Nancy, whom he remembered from the previous run-in. “Say, don't you think it's time you two got married?”
Gaines thought if over and decided that the point was well-taken. Within a month, he and Nancy were married.