It's probably more like social engineering defense training. The usual scenario being: You're at a conference and a hooker type shows up at your hotel room out

It's probably more like social engineering defense training. The usual scenario being: You're at a conference and a hooker type shows up at your hotel room out of the blue, do you a) invite them in and have a good time, especially leaving your laptop/files/etc alone with them while you sleep/clean up/get some liquor, b) not do that.