С-372

НА ВСЯКИЙ ПОЖАРНЫЙ СЛУЧАЙ coll PrepP Invar adv, fixed WO

as a precautionary measure, usu. in case an urgent need should arise

just in case

just to be absolutely (doubly, extra etc) sure as a safety net (in limited contexts) in case of trouble (of dire need etc).

...Они (Лешка и Константин) говорили до позднего вечера, а когда закрылись Сандуновские бани, взяли они Соломона Моисеевича, чтобы стоял на шухере (slang = настороже), и заграничный браунинг на всякий пожарный случай, унесенный Лешкой с поля сражения во время Великой Отечественной войны, и пошли, не мешкая, к тому месту, где была припасена для них квартирка со всеми удобствами (Терц 1). ...They (Lyoshka and Konstantin) talked until late at night, and when the Sandunovsky baths closed they took Solomon Moiseyevich along as look-out man, along with a Browning revolver (just in case of trouble) which Lyoshka had removed from the field of battle during the (Great Patriotic) war, and set off without delay to the place where that little apartment that had everything was waiting (1a).