You never know who you're really working with
I worked at a fast food restaurant (that serves fried chicken) in a mall that was local to us when I was a teenager. My sister and a couple friends also worked there. We at minimum on shift had a manager, front end- prep area person, and cook (3 people). On busy shifts we could have anywhere from 1- 4 additional people. So getting to know everyone there wasn't uncommon. You ran into everyone at some point.
Most of the workers were 30 and below in age, though there were a scattering of workers older. Flirting between coworkers wasn't uncommon nor was making good friends. Our managers were very good at hiring people that would blend well so the shifts would run smooth.
Of course there were some that worked little, with great personalities, they didn't last long. Then there were ones who worked hard, but talked little, kept to themselves, or were crotchety. They typically lasted because as long as never were outright mean or anything, work still flowed.
One cook we had kept everything about his personal life to himself, but also would try to flirt with every female he would work with. This went on for a few months and I found him a bit creepy for this, but I was stuck without anyway to get home. It would have been an hour walk, only a 15-20 min drive.
So I accepted the ride and literally held my house keys in my right hand between my fingers. He was very chatty on the way. I kept making it known I had a boyfriend, so instead he kept asking about my sister (which most guys did, she was gorgeous). I kept trying to say things in a way that I wasn't going to give out personal info about her and if he wanted info, to talk to her. Also found out he was in a military regiment with a friend of ours who had already graduated.
He kept going on about how there were so many pretty girls at work and boy was it difficult to work around that. He asked for a hug as payment and did it as much of a distance as I could because I was wary that he would grab me. I literally jumped out of the car.
(Ewwww) I had him drop me off at a house several down from mine and walked through backyards to get home. I also noticed a baby car seat in the back. When I got home I filled in my sister and our best friend. Of course they were trying to give him benefit of the doubt on all of it.
A week later my sis actually started to go out with him. It went on for a couple weeks, just a few days a week, until it slipped out he was married and also had some kids, but they lived out of state but he tried to visit his kids as much as he could.
This was the red banner my teenage sister finally reacted to and she broke things off. Not long after his regiment was called up.
Years later we found out this guy had become famous. His name? Charles Granger. The guy who did the pics and torture of prisoners at Abu Graib.