Stop jQuery fixed position scrolling when bottom of scrolling element reaches end of parent element

I'm using the below jQuery (answered by James Montagne) to begin fixed position scrolling after the user scrolls down 250px so that the element stays fixed to the top of the browser.

$(window).scroll(function(){
    $("#theFixed").css("top",Math.max(0,250-$(this).scrollTop()));
});

QUESTION: In addition, I'd like to stop the fixed position scrolling when the bottom of the scrolling fixed position element comes to the end of the parent div element. This way preventing the fixed position element from overflowing the parent element and getting cutoff.

My example code is here: http://jsfiddle.net/b43hj/2020/

<div>
    <div id="theFixed" style="position: fixed; top: 250px; background-color: red">
        0 SOMETHING<br />
        1 SOMETHING<br />
        2 SOMETHING<br />
        3 SOMETHING<br />
        4 SOMETHING<br />
        5 SOMETHING<br />
        6 SOMETHING<br />
        7 SOMETHING<br />
        8 SOMETHING<br />
        9 SOMETHING<br />
        10 SOMETHING<br />
        11 SOMETHING<br />
        12 SOMETHING<br />
        13 SOMETHING<br />
        14 SOMETHING<br />
        15 SOMETHING<br />
        16 SOMETHING<br />
        17 SOMETHING<br />
        18 SOMETHING<br />
        19 SOMETHING<br />
        20 SOMETHING<br />
        21 SOMETHING<br />
        22 SOMETHING<br />
        23 SOMETHING<br />
        24 SOMETHING<br />
        25 SOMETHING<br />
        26 SOMETHING<br />
        27 SOMETHING<br />
        28 SOMETHING<br />
        29 SOMETHING<br />
    </div>
    THIS IS A LONG SENTENCE THAT GOES PAST THE RED SOMETHINGS
    <br>
    THIS IS A LONG SENTENCE THAT GOES PAST THE RED SOMETHINGS
    <br>
    ... END
</div>

Screenshot:

(Add-on question to this original question and answer: Stopping fixed position scrolling at a certain point?)