Something cool for the kids on the street...

gistfile1.js

$('.bt-request-buffed').each(
function(index, value) { var el = $(this); var alpha = Math.floor((Math.random() * 8) + 3); setTimeout(function() { el.trigger('click'); }, (index * alpha) * 2500); });

/* Alternatively, you might try (index + alpha) * 1000 for a more natural sequence */

Here, maybe you'll find this interesting:
setInterval(function(){$('.bt-request-buffed').click();$('html, body').animate({ scrollTop: $('#footer').offset().top - 500 }, 'slow');},5000);