Buzz: Hey Mum, look at this picture. Did Dad draw it?
Me: What is it? (Sees that it is a complex geometrical problem:)
Buzz: I've traced over all the lines.
Me: Good on you.
Buzz: It's a treasure map. Why did Grandpa Bob draw a treasure map? Where is it? What is in the treasure? How does Grandpa Bob know about the treasure? Was he the one who buried it?
Me: Wha? What do you mean, it's a treasure map? How do you know?
Buzz: Because there's an "X" there.