Too Much of a Good Thing = Not a Good Thing

My wife wouldn't let me have any of the salad dressing in her Trader Joe's salad dressing packet because she wanted the rest for when she used the rest of that particular salad mix so she suggested that I use the blue cheese dressing but I informed her I had already put actual crumbled blue cheese on my salad and that I couldn't put blue cheese dressing on top of crumbled blue cheese, as that would be akin to wearing a Pixies shirt to a Pixies concert, very gauche.