I have a funny story to tell that happened here yesterday. One of our classroom trainers (not an employee of the company, but a "power user"), let's call him Gary, came to the registration office yesterday morning with a request. He met this redhead in the hot tub last night, and after chatting her up, realized she was here for the same training he was teaching, but not the same class. After speaking with her, he "realized" she should be in his class, and asked us if we could change her location. We obliged.
When they arrived at our remote location (Gary drove, and let her ride with him instead of taking the bus), our employees there thought they were long-time friends because they knew so much about each other. She sat right in the front row, directly in front of Gary.
When our VP called looking for Gary to talk to him about their dinner plans (but couldn't find him), he (the VP) asked us to track Gary down. We called back to the office where Gary was teaching, but he'd already left. Apparently Gary was overheard making new dinner plans with "one of his students".
What happens in Coeur d'Alene stays in Coeur d'Alene, I guess.
We saw this too of course. But in Gary's defense, I don't think what you are alluding too is happening. She mentioned she also dined with MS when he trained.
Some people can just be friendly or seek companionship (or teaching) and keep it innocent and respectable.