Did you live with them though. Wouldn't this be good advice.I grew up with lots of them and stayed born again and witnessed to them often. Most did come to Christ in thier later years. My Father taught me to observe others and not do what they do. My Mom's boyfried was a drunk. He came to Jesus watching a Christian talk show.
My mum said I wan't to copy what Dad did lol. I was to only listen to her, and she would NEVER put me wrong.
My dad never got drunk, but he would often do silly things my mum was not amused by or approved of. She was like the Queen.