"Angels - Explained By Children" joke

Sarah, 7: "I only know the names of two angels - Hark and Harold."
Gregory, 5: "Everybody's got it all wrong. Angels don't wear halos anymore. I forget why, but scientists are working on it."
Olive, 9: "It's not easy to become an angel. First, you die. Then you go to heaven, then there's still the flight training to go through. And then you got to agree to wear those angel clothes."
Matthew, 9: "Angels work for God and watch over kids when God has to go do something else."
Mitchell, 7: "My guardian angel helps me with math, but he's not much good for science."
Henry, 8: "Angels don't eat, but they drink milk from Holy Cows!!!"
Jack, 6: "Angels talk all the way while they're flying you up to heaven. The main subject is where you went wrong before you got dead."
Daniel, 9: "When an angel gets mad, he takes a deep breath and counts to ten. And when he lets out his breath, somewhere there's a tornado."
Reagan, 10: "Angels have a lot to do and they keep very busy. If you lose a tooth, an angel comes in through your window and leaves money under your pillow. Then when it gets cold, angels go north for the winter."
Sara, 6: "Angels live in cloud houses made by God and his son, who's a very good carpenter."
Vicki, 8: "What I don't get about angels is why, when someone is in love, they shoot arrows at them."