Spoiler
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You get an attack of Opportunity, hereafter called an AoO. You get "One Free internets Attack." Roll and type out the attack, he is going right in front of you as he runs by.
And the roll, for your shouting statements..is INTIMIDATION.
And yes you can go "total Defense" and get a +4 to Dodge for the next round or until you're done being "total defense.
Spoiler
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As you see the random thug/pirate toss a bag at you, it slumps to the floor, and nothing more happens. You notice the door open again andas the dor opens, another thug comes running out of YOUR room! You can hear jessamyn shouting something , coming from the room and the sounds of a struggle. The escaping thug/pirate is running towards the now open door.