Zayde Babysits before Passover

Passover starts tonight and Zayde is babysitting for Ruthie--his first time by himself! Mommy has left a list of things to do: Buy parsley at the grocery store for the seder plate, go to the playground so Ruthie can use up energy, then use up more energy at home because seders last a long time. And be sure Ruthie takes a nap. But who exactly is babysitting whom as an afternoon of shenanigans ensue?