Different interpretations of the same sentence. I say to Anna, "take your glass, you can drink your milk". Then I turn my back to go to look for some cookies. A couple of minutes later, I go back to the living room.
This is what I find:
Yes, apparently Anna understands: "I am going to have great fun, and make myself and everything around as dirty as possible."
So, again, in this kind of situations, put it into perspective, and take a picture. You will smile about it after a couple of days!