Try to avoid having vinegar in your salad dressing since vinegar destroys the flavor of wine.
In response, I'm just going to ask a few questions:
1. Ever been to France?
2. Do the French eat a salad often at dinner?
3. What do they dress their salads with?
4. What do they drink with their salads?
Don't pay any heed to this old nonsense. Just keep on drinking wine with your dinner.