hit-and-run bag
n.— «Because he wasn’t thoroughly knowledgeable about where survival equipment was stored in the ACES II seat kit, he left behind the “hit-and-run bag” which contained duplicates of all his signaling items. Reflecting on the haste with which he had left behind his hit-and-run bag, he worried constantly about whether his emergency radio would continue working. He agonized over how much aggravation he could have saved himself if only he had remembered to take the extra battery and radio with him.» —“Meant to fly?” by Bryan L. Kasmenn Flying Safety Mar. 1, 1999. (source: Double-Tongued Dictionary)