Sleeping with one eye open

So I took my 9 year old daughter to school the other day, and as we drove past a modern Mustang that was parked on the side of the road, I pointed it out to her. I explained to her that that sleek little car was a descendant of our very own classic Mustang.
�I�ll bet ours goes faster!� she said.
�Oh, probably not sweetheart. That little thing probably weighs half of what ours does, and ours was never really one of the Mustangs that was made to go really fast.�
�I don�t care � I like ours better anyway!�
�If you think you like it now, just wait until you are a teenager! You�re gonna hate daddy, because you�re gonna really like it then and you�re gonna want to take it, and I�m not gonna let you.�
�Oh yeah? We�ll see about THAT when you get old and die daddy.� She replied, grinning at me.

I�m sorta thinking I better sleep with one eye open from now on . . .