Jrpeterman, thanks for the dose of reality.
Muslim terrorists do not whip out AKs and blast people indiscriminately. They wear belts with explosives and blow themselves up in crowds. Shootings risk capture which risks exposing the organization. If an al Qaeda guys blows himself up the best plan in the universe will not save you from that. Be aware of exits and use them, yes. In Israel the tactic is for one guy to blow himself up and then when the crowd gathers to assess damage the second guy "goes ballistic."