Dog snot and scallops

It interesting what comes up in conversation now in my house. Before kids it wasnt quite so silly or abstract. As I was preparing a nice meal of scallops for my family my daughter asked what was better for you, dog snot or people snot. I had no idea what this meant and my face must have shown it because she explained that she had touched one of the dogs' wet noses and was just wondering if it was more germy than people snot. I told her that I thought dog snot was better. Well, I do...