કેસીયો ચૂકે તો કુવામાં ઝુંકે.

kēsīyō cūkē tō kuvāmāṁ jhuṁkē.

Literally: If the well-bucket operator slips, he plunges into the well.
What it means: A single moment of carelessness in a risky job leads to disaster.

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1921) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.