Tell your daughter that she wold be better off dating the college professor than the nosey janitor who is about to get fired. If he is in rehab, he is dealing with the problem. Does the nosey soon to be unemployed janitor not drink? If so, would it not be better to date a recovering alcoholic than someone who is only just becomming an alcoholic when he loses his job? Besides, he will likely be more interesting to talk to, have moeny for better dates and be a better potential provider. It is an all around win.
That is not to insult janitors. I was a janitor for several years and hopefully I was interesting to talk to, but I was pretty much broke all the time.