Dynamically insert fartscroll while your co-worker is away from their desk. Insert line 1 into a users console, followed up by line 2.

fartscroll.js

var script = document.createElement( 'script' ); script.type = 'text/javascript'; script.src = 'http://code.onion.com/fartscroll.js'; document.getElementsByTagName('body')[0].appendChild( script );

fartscroll();