I got it knocked off my list.
It was for a website, so at least I had no fears about it being some guy on the other side. There was some screening ahead of time, they were easy to work with, no problems there. Later they sent an invite with a time and place where they would be shooting. When I got there were a half-dozen guys ahead of me, all waiting around a bit like we were at the doctors office. Easy ID check and a little bit of release paperwork.
The event itself was even better than I thought it would be. It sure didn't hurt that the girl was an absolute hottie and she knew what she was doing. I'll definitely be back for more!