This is a scene played out everyday in offices all across the world.
Ahh, I remember this kind of advice fondly. It trains people to be socially-awkward.
It reminds me of when I was 22 years old working in an office environment. I had been recently hired and two married female coworkers (gasp!) invited me to a baseball game. They were being nice, of course, trying to get to know the new guy, but I panicked. I can't imagine how ridiculous I must have come across as. I first told them I would go and I spent the rest of the work day coming up with an excuse to back out. I viewed the simple invitation as if there were some sexual significance to it.
This kind of warped view of sexuality, unfortunately, was widespread among JWs of my generation. I remember a conversation with some JWs I grew up with where the women all unanimously stated that they would refuse to go to lunch alone with their male boss . That kind of thing happens all the time in my line of work. Men and women take business trips together and even (double gasp!) spend time alone with one another. Amazingly, most people are capable of controlling their sexual impulses and treating one another with respect.
In the 5 years that I've been away from JWism, I had almost forgotten about this obsession with sex. Recently, an inactive female JW called me up. I was in the middle of watching a movie, and I didn't feel like pausing for an extended conversation, so I invited her over to watch it with me just to be polite. She said no and I thought that was the end of it. About a week later she called to confront me about the lack of respect I had shown her by inviting her over to my house when I was alone. It dawned on me at that point that she equated my invitation with an invitation to have sex. That didn’t even cross my mind. In the years since I've stopped going to meetings, I've spent a lot of time alone with women to where being alone with a woman has lost the taboo connotation that the WT attaches to it.
I'm just glad I no longer live in that world.