What mouse bit the cake?

Xavier, did you touch the cake?

-No

-Are you sure?      A long pause

-Yes

-So you didn't steal any chocolate cake?

-No

-Xavier, go look at your face in the bathroom please.

Xavier runs into the bathroom and comes back after moment.

-I didn't do it.

-Now you sound like someone we read about. Who is it that talks like that?

Xavier gets the book 'No David'.

-Sorry mom.

I laugh.  -It's okay honey.  Just don't do it again, ask first.