"No assholes" logo.  (Note: Although based on <a rel="nofollow" class="external text" href="http://www.psychologytoday.com/files/u665/no_assholes_big.jpg">this</a>, from <i>Psychology Today</i>, the elements of the logo are not copyrightable and fall under PD-textlogo.  This version was created entirely by me.)
<a href="//commons.wikimedia.org/wiki/User:Beyond_My_Ken" title="User:Beyond My Ken">Beyond My Ken</a>
<span class="int-own-work" lang="en">Own work</span>