In general I loved - and still do when I visit - my mom's cooking. But there was this one soup she'd make that was a combination of every imaginable vegetable out there that ended up tasting like vinegar. It was repulsive, but the rule was you don't eat the soup, you don't get the main course or desert either. So I ate the damn thing. Luckily it only made the rotation once or twice a year but even 20-25 years later I can still taste that awful vinegary broth. Shudder.