Userscript that removes the SOPA overlay on English Wikipedia

wikipedia-remove-sopa-warning.user.js

// ==UserScript==
// @name Disable the SOPA overlay on English Wikipedia
// @author Mathias Bynens <http://mathiasbynens.be/>
// @match http://en.wikipedia.org/wiki/*
// ==/UserScript==

// http://mths.be/unsafewindow
window.unsafeWindow || (
	unsafeWindow = (function() {
		var el = document.createElement('p');
		el.setAttribute('onclick', 'return window;');
		return el.onclick();
	}())
);

unsafeWindow.jQuery('#siteNotice, #mw-sopaOverlay').remove().end().add('#content').show();