“…Studies of bars, pubs, and nightclubs reveal how specific setting characteristics can lead to higher levels of violent conduct. Structural factors like overcrowding, narrow hallways/doors, loud noise, poor ventilation, lack of or poorly trained security staff, and lack of proper seating have been linked to disproportionately high rates of aggressive behavior (Forsyth & Lennox, 2010;Graham, Bernards, Osgood, & Wells, 2012;Graham et al, 2004;Hobbs, O'Brien, & Westmarland, 2007;Roberts, 2007;Schnitzer et al, 2010). Social factors such as a permissive atmosphere or reputation for violent conduct (Graham et al, 2000;Quigley & Leonard, 2004), commercialism (Anderson, Daly, & Rapp, 2009;Kavanaugh, 2013), competition or heightened concerns about sexuality (Anderson et al, 2009;Egan & Hamilton, 2008;Wells et al, 2009), and the perception that fighting is normal, acceptable, or even expected (Bernburg & Thorlindsson, 2005;Wells, Graham, & Tremblay, 2007;Wells, Neighbors, Tremblay, & Graham, 2011) also contribute to barroom aggression.…”