Have to put my two cents in here.
You can be brutally honest over and over again with an alcholic, and they still will do whatever they want, when they want, and not care about what you are trying to do to help them.
They have to be ready to start living a different life. Meaning no alcohol.
My friend had to hit bottom before she finally realized she had to change her life.
Some people aren't that lucky, and never get out of their "alcohol fog."
My relaying this is because I lost my father and fatherinlaw to alcoholism, and it's not a pretty to sight to watch.
You can give them all the advice, love, anger, and pity, and they will still do whatever they want.
Daisygirl.....I hope you can talk your friend out of getting a dog. Good luck!
Lynne