I did some work on a guys house many years back, we went on to become real good friends, plus our families did.
We were opposites, me a plumber, him a gold & diamond dealer. He was an alcoholic, he not only could but did slaughter a bottle of vodka a day plus extras. He didn't hide his addiction, in fact everyone knew what he was. All the years though, I never once saw him drunk or being offensive.
One day whilst working in his house I had to go into his garage, there was his son with a couple of mates sharing a spliff, he nearly died when he saw me.........even tried to make out it was just a normal cigarette. It was one of them, "don't tell my parents I smoke".
Over the next couple of months I used to talk to the lad quite a bit, over the booze, he told me that his Mother was the same with the drink but nobody saw it because they always concentrated on the Father. I don't know how it came about but the son somehow got his Father to have a spliff. No, it never cured him of the alcoholism but it certainly knocked the living daylights out of it. His vodka intake dramatically dropped.
He had been smoking it for a couple of months before he actually told me, at that stage I could smell it every time I went to his home. It was only then that I told him I had been smoking it for years.
This was a suited & booted fella, pretty wealthy, knew the right people & the very last person you would link cannabis to.