How Many Fingers?

Daphne is currently obsessed with asking us how many fingers she is holding up. She always starts with all 10 fingers until we say 10, folds one in and waits until we say 9, all the way down to 0. I don't mind indulging her except Daphne doesn't understand that neither Michael or I can play this game while we are driving. Although I guess we could slowly count from 10 down to 0 without even looking and Daphne would never even know the difference.