"Navy investigators have determined that a civilian laborer set a fire that caused $400 million in damage to a nuclear-powered submarine because he had anxiety and wanted to get out of work early," begins THIS Associated Press article.
"Fury said he set the second fire after getting anxious over a
text-message exchange with an ex-girlfriend about a man she had started
seeing, according to the affidavit. He wanted to leave work early, so he
took some alcohol wipes and set them on fire outside the submarine."