I once worked at a place where the receptionist held the door open for a thief who made off with about 10 PCs, taken from random work desks near the entrance.
She thought that because he was wearing a suit and a badge from his "company" that he must have been supposed to be there, and assumed he was probably taking the computers away to be fixed.
There was surprisingly little repercussion for violating the "one card one person" door policy and by someone whose job it was to know which visitors would be on-site on any given day, and so should have known that this guy wasn't supposed to be there.
She thought that because he was wearing a suit and a badge from his "company" that he must have been supposed to be there, and assumed he was probably taking the computers away to be fixed.
There was surprisingly little repercussion for violating the "one card one person" door policy and by someone whose job it was to know which visitors would be on-site on any given day, and so should have known that this guy wasn't supposed to be there.