I was sitting watching a movie and had a odd thought , I thought why is it in times of danger poeples instict is to scream I do not understand that ? I mean if your in an abandoned building in the forrest with no poeple but you and a killer and he is sneaking around looking for you or chasing you why do you scream ? if you are attacked and someone slashes at you why would you scream even if you know no one is thier but you and the danger ? I dont understand this fuction ? why do poeple scream so much ? why do poeple scream when thier in pain this too has no real fuction I understand crying but screaming I know this is odd I think to much .