<blockquote><div><cite>Sylvira wrote:</cite>[[I don't think AoO's can provoke AoO's ^^  Otherwise, I've already been in situations (in other campaigns) where there would be an AoO to an AoO to an AoO to and AoO because of an AoO.  Not joking ^^  Not sure if that's specifically addressed in the book though.  Guess it'd be up to the DM]]</div></blockquote><br/><br/>[[To the best of my knowledge, attacks of opportunity can provoke attacks of opportunity per Rules As Written. I can't find explicity wording either way in the PRD immediately, and I can't find Word Of God on the matter, but there is a thread:m<a class="postlink" href="http://paizo.com/threads/rzs2mf7z?Can-an-Attack-of-Opportunity-Attack-trigger">http://paizo.com/threads/rzs2mf7z?Can-a ... ck-trigger</a>mon the rules questions forums. And as Xarces says, it doesn't get SUPER goofy until everyone has combat reflexes.<br/><br/>I will also note that I think in this case rules as written are super goofy and should be neglected. If A runs past B and B tries to trip A, you cannot persuade me that it makes sense that A should get to trip B first while also continuing to move on by. ((RAW this is true; the final provoked AOO would go first, so A's AOO in response to B's provoking trip would register before B's trip provoked by A's movement. It makes<span style="font-style: italic">no sense</span>and is one of the places where the written rules trip and fall off a cliff. ]]