You walk through the doors carrying a small slip of paper and slowly move to the back corner of the store. There you find a woman in a white coat and you hand her your slip of paper. She drifts behind a screen and you hear the sound of tumbling tablets. You have been here before and recognize that you may have to wait a while. Eventually you will receive what only she and people like her can provide. You give her money or a credit card and make your way out of the store with a little white bag. No one but you and she know what that little white bag contains.