Pokryshkin survived several close calls during this time. A machine gun round drove through the right side of the cockpit, cut his shoulder straps, ricocheted off the left side and scratched his chin, covering the entire windscreen in blood. Twice, unexploded bombs landed between his feet, one time during a dramatic low-level raid on his airfield by a pair of Ju 88s. Pokryshkin tried to defend his fighter, one of the very few remaining serviceable aircraft, by removing a flexible machine gun from the nearby bomber and placing it on top of his fighter's fuselage. One of the German bombers saw Pokryshkin firing the only machine gun in the area and flew straight at him, dropping small bombs in a shallow dive. Pokryshkin watched a string of explosions running up to him, but the bomb that landed immediately next to him did not explode. The Ju 88 had dropped it too low; the bomb had insufficient time to arm itself before hitting the ground.