Why?

One of Matthews little 'friends' taught him a new word on Friday and how to use it. Here's an example.....
(I am in the shower)
Matthew: dada, what are you doing?
Me: I'm having a shower Matthew
Matthew: why?
Me: Because I'm dirty and smelly and need one
Matthew: why?
Me: Because I worked in the garden today and it was hot today
Matthew: why?
Me: Because your mother wanted the grass edges trimmed and a tree transplanted
Matthew: why?
Me: Go ask your mother why
Matthew: why?
Me: Because I said so
Matthew: why?

The boy has perfected the male art of conversation with minimal effort and input... the girls will love him.