I was traveling in northern France recently with my brother and dad. I speak French pretty well but my culinary vocabulary is a bit lacking so I couldn't always tell what exactly the menu said. So we're at this pub in Arras, and my brother has this bad habit of simply pointing to a menu item and not even attempting to pronounce it because his french is non-existent. So he points at something on the menu and the guy is like "le Welsh?" and I have no idea what a Welsh is or what my brother thought he was ordering so I just tell him that he wants whatever he's pointing at. And what arrives is essentially a large bowl of greasy, melted cheese with a slice of bread at the bottom. It was the only genuinely nasty thing any of us got the entire time we were in France. My brother learned after that to just make an attempt to pronounce the thing on the menu so he wouldn't get burned again.
On a more positive note, when we were in Bretagne, I tried their regional Mead as well as the "Galette Saucisse" (basically a savoury crepe wrapped around a sausage) and both were amazing. I still have dreams about the Galette. I wish there were Breton crèperies here in Canada.