What the Hell is Going on Around Here?

Yesterday I received an email from our super-nanny, Lindsay, observing that Jane had repeatedly been using the phrase "what the hell?"  Specifically, within the space of an hour or so, she had made the following (totally casual) inquiries:

"What the hell is wrong with this thing?"  (Referring to a broken magnet on our refrigerator door.)

"What the hell are you barking about, Hugo?" (Self-explanatory - and probably a reasonable question.)

And . . . "What the hell should I pack in my lunch?"  (Also not unreasonable, in my view.)

The first two times, Lindsay asked what she'd just said and Jane responded by repeating her statement but omitting the "what the hell" bit.  The third time, Lindsay decided that she needed to put a stop to it:

Lindsay:  "Jane, that's not polite."
Jane:  "What's not polite?"
Lindsay:  "Saying 'what the hell.'  Where did you learn that?"
Jane:  "Well, Mommy says it all the time - so I say it, too."