I think back to my mother and how she might have handled it. I think it would have gone something like this...
Grow up and stop whining.
Because I'm your mother and I said so.
No no that is not it. It would be something like this.
Grow up and stop whining. now go take out the garbage and do the yard.
because I'm your mother and I said so (accompany with a smack upside-of-the-head) and go clean your rooms.
Which remind me I need to do the yard. *yes, dear! will work on the yard right away, dear! right after I hit the submit button on aikiweb, dear!* See! now you all got me into trouble!