In the Haggadah, the Ten Plagues are recited, and a drop of wine is spilled for each one. However, in the Tunisian tradition (and maybe others), after the reader chants each plague, the others respond with something. What do they say? It happens starting at 16:13 in this video of Nathan Cohen's recitation of the Haggadah:
I'm guessing Tunisian Jews aren't the only ones who say this, and it may be a response to generally hearing about bad things, I don't know. That's why I'm asking!