We have a local one that the first time I saw him I couldn't beieve my eyes
Had an older full sized 4X4 Suburban that had multiple yellow light bars, and enough antennas that if he ever keyed up all his radios at the same time it would fry small fur bearing animals.
Pulled up to me wearing a Black ball cap with "Security" on it, fully adorned by Captain's bars. Had about a two day old beard. He smiled, showing his tooth (not a typo) and proceeded to fill me in on all the various parking violations in 3 block area. I assured him that I would pass it on to the other officers in the area that handled parking enforcement. He drove off.
I was relatively new to the agency and thought that I may have seen a ghost story or legend, that it couldn't be real. I spoke of it to no one, for fear of ridicule or being accused of drinking on the job. I never said a thing about it until I saw him again when I was riding with a witness.
He was well known throughout the area, by all the agencies. Harmless, sometimes a source of valid info, but an odd duck to say the least
OTH we had a local nut who did his own security work in an auctioned PD cruiser for a few years. I couldn't believe he was finding work but he did. He was known to eat his meals at homeless shelters. Anyway after a few years he got himself arrested for doing traffic stops on unsuspecting females who he either fondled or wanted to "make deals" with to avoid trouble