High school, or middle school is not materially different than the rest of the world.<p>The idea of &quot;The adult version of high school&quot; for situations that involve bullies, ingroup&#x2F;outgroup and pettiness etc... is silly because it assumes that those things are only relegated to children.<p>Case in point: The G20 in Australia[1]. All the cool kids sit with Obama, Putin ate lunch alone and was on the outside of the class photo. If the highest level of political diplomacy is also &quot;the adult version of high school&quot;...well then I guess the whole thing is just high school.<p>[1]<a href="http:&#x2F;&#x2F;www.pbs.org&#x2F;video&#x2F;2365401766&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.pbs.org&#x2F;video&#x2F;2365401766&#x2F;</a> time:50:08