The office lunch hour should be a sacred break, a time to recharge, gossip, and maybe even enjoy your food. But for every appetizing salad or perfectly packed sandwich, there’s an unholy creation lurking in the breakroom fridge.

From questionable leftovers that predate your first day on the job to mystery dishes that smell like they crawled out of the ocean, these meals make even the strongest stomachs quiver and you’ll smell them from cubicles away.

Some are unthinkable combinations, others are just plain wrong, and a few are food crimes we wish we could unsee. After this gallery of culinary chaos, you’ll never look at the communal microwave the same way again.