Luna, however, will jump into the car whenever Mommy gets near it - like, when she's getting something out of the car, like a book or groceries. In fact, whenever Mommy opens her car for anything at all, Luna jumps in. Luna doesn't cooperate when getting back out. She stays for as long as it takes so she's comfortable with the possibility that Mommy is not actually leaving in the car. Only then will Luna jump down.