So, my youngest daughter finds one of our credit cards and states emphatically..."Ooooh, a credit card...I could buy all sorts of things."
To which my wife replies: "Sweetie, where would you use it? You can't possibly think I'd give you a ride to spend my money." (as if we don't do that already...)
Final answer, without missing a beat - "I'll just use the computer and order off the internet..."
Nice that the 6 year old is comfortable with that already...I'm thinking it's time to lock the PC up...