Cast Silenzio! on those annoying sims and they will lose their voice, they will not be able to talk or sing for a few hours and they will become quite stressed because of that.
This mod increases the menu limit in restaurants to 50 or 100 (only choose one!) instead of the default 30. This means that for each category (appetizers, drinks, entrees, etc.) you can now choose 50 or 100 items to serve.