jQuery - Toggle div class on click

Question

No, this is not a straight forward toggle question. I am aware of the toggle() functions and how to simply hide/show a div. Imagine a box with a label inside:

Answer 1

$('.section').click(function() {
    $(this).removeClass('hidden');
});

$('.section-legend').click(function(e) {
    var $parent = $(this).parent();
    if(!$parent.hasClass('hidden')) {
        $parent.addClass('hidden');
        return false;
    }
});