You've got to screen carefully. Do it in a hotel, not where you live, and meet any potentials in the lobby bar or a restaurant close by. Of course you want to talk to them beforehand but you're gonna get catfished so make them prove they are who they say they are ( as far as appearance, attitude, etc is concerned) before they get to come to the room. You need to set ground rules with your girl as far as what is and isn't acceptable and then make that clear to the guys before things get started. You're going to have to be her bodyguard through this so stay sober and focused. You don't want to get all your stuff stolen,or beaten up, because you let your guard down. Really its just basic ommon sense stuff like that.