I have a niece that had rohypnol slipped in her drink during her freshman year in college...it was a very, very good friend that did it...
She was raped, and has been hospitalized twice for suicide attempts since last Thanksgiving...she has quit school..and she is barely making it..
If a very, very good friend will do it, I don't doubt that a stranger would do it in a heartbeat!
Thank you very much.