Had one of mine when pulling away (alone) from a photographic run over a target in Burma my Flight had just bombed, my gunner piped up: "there's a radial - engined fighter about two miles behind us !"
Another was when, downwind, wheels down with full bomb load and fuel, the engine seized ! (Vultee Vengeances went down like a stone when power failed - no hope of "dead-sticking" it on the strip).
We survived, but left a pile of scrap spread along a half-mile of Arakan open jungle.