[The following is an excerpt of an account of a B-24 crew flying over Germany during World War II.]
Then the plane to his right got hit. “A flak explosion at its number three engine had blown the right wing from the body. The scene was incomprehensible – the wing tumbled over and down, and the fuselage was nosing into a five.” There were no parachutes. “The bam-bam-bams and poof-poof-poofs [of enemy flak] were exploding everywhere; it was inconceivable to fly through this unscathed.”
Source:
Ambrose, Stephen E. “Learning to Fly in Combat.” The Wild Blue: The Crews of the B-24. Simon & Schuster, 2002. 168. Print.
WW2 bomber crews had to have at least one or two screws loose to keep flying through that in those tight formations.