Security Guard (AKA Barney)

Security guards are your friends. Tap them on the shoulder and they'll cover you, fighting monsters that attack you on the way. They can also help you open security doors, among other things. Sometimes called "Barneys" due to their resemblance to Barney Fife of Andy Griffith fame, Security Guards may not be very bright but they can come in handy. Security Guards won't hesistate to defend themselves and their co-workers, so pushing them around is ill-advised.