A couple of years ago, a girl was employed at a local supermarket. One of her responsibilities was to return all the items taken off the shelves and placed elsewhere in the store. This task she performed after store-hours.
On the first day on the job, she noticed that her boss also stayed in the store after closing. She thought it was a one-time thing. But the next day, when her boss was there again after closing hours. She came home and told her father she no longer wanted to work there. According to halachah, it wasn't a situation that involved an actual issur yichud, but she was uncomfortable and felt it was a breach in tznius.
Some days later, she met a woman who also worked in the store and asked her why she left. She told her the reason. That woman was impressed by her yiras Shamayim, and went home and told her parents, "About a half-year-ago, a shidduch was redt for our sister with a certain bachur, but you turned it down because you got the impression that the yiras Shamayim in that home wasn't up to par. I just met the sister of that bachur. She left her job because of tznius! So, you see, the yiras Shamayim in that house is strong."
The parents looked into it again, and the shidduch was finalized.
