That is where you'd be mistaken. Though originally the genie wasn't limited to three wishes.

[She glances over at him, giving him a brief once-over and a light smirk.]

You've stepped right out of A Thousand and One Arabian Nights.

[Because establishing that intimate knowledge of how tricky and evil and all-powerful spiritual beings can be is commonplace couldn't possibly have to do with downplaying her own knowledge of such things, should it come to that. And of course it's common place. >>]