“When things go wrong and will not come right”
The Third Policeman (1967)
Help us to complete the source, original and additional information
Flann O'Brien 30
Irish writer 1911–1966Related quotes

“When women go wrong, men go right after them.”
She Done Him Wrong (1933)

Presumably a paraphrase of "A peculiar virtue in wildlife ethics is that the hunter ordinarily has no gallery to applaud or disapprove of his conduct" or of "Hunting for sport is an improvement ..." above.
Unlikely to be by Leopold, who knew that ethics involves not only doing the right thing, but also determining the right thing in the face of competing desirable criteria.
Misattributed

about 1900, page 429
John of the Mountains, 1938
“The right thing at the wrong time is never the right thing.”
Source: Between The Tides