No coworker specifically at the moment. But when we were newly married and in graduate school in our 20s, there was a 30-year-old guy who wrote an email (!) to my wife saying that he was very attracted to her, even though he knew she was married. 😳 She was also attracted to him. I should have let my wife have sex with him. It would have made her (and me) and her would-be lover happy.