We had a guy like that at my old job. He immediately made everyone suspicious. His first day, he constantly asked about security cameras, which doors were locke

We had a guy like that at my old job. He immediately made everyone suspicious. His first day, he constantly asked about security cameras, which doors were locked at night, how valuable everything was etc. He was frequently found in weird places with no explanation, seemed uninterested in anything about his actual job or even beginning to learn why he was there or what his tasks would be, and just generally gave off the vibe of 'was planning some oceans 11 shit' or something. He seemed oblivious to exactly how odd and suspicious he was being. He only lasted a few days, I'm honestly not sure why the boss kept him around that long. Nobody was impressed. I guess my point is, if your genuine concern is security, definitely make sure you're not coming off like you're planning some grand movie heist. He was probably one of the oddest people i've worked with, turns out nobody checked his out of province reference and when they finally did, nobody'd ever actually heard of him at his 'previous place of employment' so who knows.