Generally speaking commercial security will not shoot you unless they have no other option. When you start talking courthouses and other government facilities

Generally speaking commercial security will not shoot you unless they have no other option. When you start talking courthouses and other government facilities where the people carrying guns more or less have government granted immunity if they use them in questionable circumstances all bets are off. You could get a normal security guard or you could get the ex-police officer who got kicked out of real policing for being too violent too often (whereas that guy would never be able to maintain employment in private security).