Alchohol dependancy can creep up on someone wilthout them (or anyone else) ever realizing its happening ..... I've experienced some desperate revelations on guys I've known or worked with over the years ..... guys I've questioned for irrational behaviour accasionally, and then eventually discovering a real problem existed .....
One guy wiped out his family (wife and kids) through drinking and driving .... re-married and had another couple of kids and years later I ran into him again and he was still drinking
Another guy ..... had to be watched carefully for some of the most crazy decisions being made at times ..... "He woke up 'dead' one day, alone and totally saturated !
These were guys considered "the salt of the earth" !!!