In the episode of, The Fury, which is season 2 episode 10 and Scott's mom pulls up to the sheriff's station because Scott called her before Matt showed up with the kanima and a gun. And Derek and Stiles are on the ground, Stiles yells to Scott don't trust her. As a result Matt turns Stiles over and slams his foot on Stile's chest. HERE'S MY QUESTION: Stiles proceeds to turn purple and starts coughing and his eyes are watering is that Dylan acting or something else going on? Because it looks too real I don't think directors would allow that to happen and even if they didn't how do you fake being strangled?