Oops! Sailor accused of torching the Bonhomme Richard wore wrong insignia to his Article 32...

He's the 10% that takes up 90% of one's time, and he's exceeding that standard...

And how exactly did he think that no one would notice?

Presuming he is the guilty party (and I doubt that is a stretch, but innocent until proven, right?), I am not surprised he couldn't get his rank correct.