Plot Trope Scrambler

This time, it's for plots.

by Swordie

HTML

Wondering what to do for a story? I /guess/ you can use this!
<br>
<br>

<button>lay it on me!</button>
<h2></h2>

JavaScript

$('button').click(function() {
    $('h2').text(randomEl(trope1)+', '+randomEl(trope2)+', '+randomEl(trope3));
    selectElementContents($('h2')[0]);
});

function randomEl(list) {
    var i = Math.floor(Math.random() * list.length);
    return list[i];
}

function selectElementContents(el) {
    var range = document.createRange();
    range.selectNodeContents(el);
    var sel = window.getSelection();
    sel.removeAllRanges();
    sel.addRange(range);
}

var trope1 = ["15 minutes of fame","a dog ate my homework","a friend in need","a real man is a killer","a simple plan","abuse mistake","accidental athlete","accidental hero","accidental marriage","achilles in his tent","action-hero babysitter","adventure rebuff","adventures in the bible","alien among us","alien invasion","all for nothing","all that glitters","all up to you","all your base are belond to us","allegory adventure","alternate universe","america saves the day","amnesia danger","an offer you cant refuse","and now you must marry me","animal athlete loophole","animal testing","annoying patient","antagonist in mourning","anticlimactic parent","appease the volcano god","april fools' plot","assimilation plot","attack of the town festival","axes at school","bachelor auction","back to school","bad luck charm","badass in distress","bathe her and bring her to me","batman in my basement","be careful what you wish for","be yourself","beauty contest","becoming the costume","becoming the mask","benched hero","bizarro episode","black like me","blithe spirit","body horror","body snatcher","body surf","body-count competition","bottle episode","brainwashed and crazy","brainwashed","breaking out the boss","breakout mook character","bride with a past","bring help back","bring it back alive","bring news back","broken masquerade","broken pedestal","broken streak","broken treasure","brought down to badass","brought down to normal","bruce wayne held hostage","bulk buy only","bury me not on the lone prarie","business as...