That's funny! For some reason, I would've pegged Chekov as the messy one, not Sulu!
I love how you repeat the "facts of the case" to drive home Chekov's indignation.
"Chekov just stared. He had a galley stove in his quarters. He had goo on his table. There was white powder on his floor."
You can just feel him getting more and more steamed!