We made a sandman with some of our cousins. While everyone was digging dip into the sand a conversation went as follows:

My niece: What is under all this sand?

My sister: I don't know. Magma?

Niece: Why magma?

Sister: I don't know. Maybe it's just bedrock.
My son: You bet I rock.

Sister: What?

My son: You bet I rock.

The end.