I've got a...somewhat literal, bug to report. What I now know is a roach nest spawned lodged halfway into the side of the fridge. Wanting to try and get rid of it, I hit it...and my framerate tanked as I was treated to a cacophony of smacking noises. Stray roaches clipping into the fridge, but most, as you can see here, getting lodged between it and the wall, leading to an unending caterwaul of slapping noises that still hasn't stopped. Given I can't seem to move the refridgerator itself anymore, I'm not sure how to solve this, if at all, but...might be worth changing the spawn conditions for the nest to prevent something like this from happening.
EDIT: They did despawn after a bit, at least, so the noise did stop eventually.