“…As reported in many studies, people experience fear and uncertainty, but this does not necessarily mean that they will act selfishly or impulsively (Quarantelli, 2008(Quarantelli, , 1986Alexander, 2013;Lowe and Fothergill, 2003). After moments of uncertainty and milling, in fact, people often start to evacuate in a self-organised and coordinated (Connell, 2001) manner, usually acting as a group, especially in the presence of familiar people (Riad et al, 1999;. This happens because people act in groups, with familiar persons and relatives, unknown people or both in normal circumstances and in the majority of routine situations.…”