Was visiting an escort and she met me up outside the main entry. If u have the opportunity to meet the client this way and discret its more safe for you. Safety and protection have to come first. In you can do this way you get a chance to refuse the client if u notice something suspicious. I think its much more problematic for you if the client already have entered your apartment. No one take notice if want to hurt you or rob you if you stay alone in apartment. If you meet client outside main entry and no money in pocket you are not an interested object for at least robbers. Maybe this can be a tips for the escorts black box.