Milky Houses

I was taking the kids to my mother's house this morning so I could go back to the hospital. Siennah looks out of the window and says, "Daddy there's milk on that house!" I look around trying to figure out what the heck she is talking about. Then I realize it is the frost on the roof. I told her is was frozen water and it was also all over the ground. She said, "No, it's milk." Okay, I know when I will not win an argument, so I agreed it was milk.