This is what happens when you have a sleep over the night before and you think staying up until 2 a.m. is a cool thing to do and then you get up really early the next morning. Five minutes in the vehicle and you are out like a light. The kid next to you that is screaming doesn't faze you a bit.
This is the screaming kid next to the sleeping kid who has been pretending all day long to be a puppy. He has also lost his mind when observing that Mama was taking pictures of MuMu and not him. Therefore, to make the high pitch screaming stop? Mama takes a picture of him so he will just.shut.up.