Reminds me of a story from a US Nsvy reservist who spent some time on a Taiwanese(?) destroyer. May or may not be true.
They cooked a large pot of rice for the enlisted. They left it out in the open for a while, maybe below decks?
Cockroaches swarmed the pot. At some point they stirred them in and served it to the crew.
Anybody who served on any ship especially in the Pacific and Asia in particular is going to have roaches and they can find their way into food...but not in swarms....a swarm is rather hard to miss...
It was an endless game of spraying compartments and flushing them to adjoining ones and repeating the cycle for perpetuity...
I only recall small roach parts in pancakes once, easily solved, no more pancakes...or soup...nothing I can't easily inspect...
