Little Boy: Are you an angel?

Girl: What?

Little Boy: My mum told me that those who have marked wrists are angels

Girl: I'm not an angel

Little Boy: Of course you are, mum said that only angels harm themselves because they don't like life on earth. This world is destroying them so they try to return to heaven, they are too sensitive to the pain of others and their own.

Girl: You know your mum is very wise

Little Boy: Thank you, she's also an angel but she has already returned home.