"It's broken."
"It can't be broken, we built it, and we're amazing."
"I don't know what to tell you, it's broken."
"You're wrong."
--why the US Navy couldn't kill ships with their torpedoes until years after the start of the war.The USN Pacific Submarine Campaign - Hey, the torped...Basically the problem was once it goes bonk the impact breaks the thing that'll start the kaboom