Years ago I had a cold so bought some stuff for that and it had codeine in it. It took the edge off things.
The next time I had a cold I bought the same stuff.
Then one day I didn’t have a cold and bought it !
I was standing at the bus stop with this stuff in my hand wondering what the hell I was doing. So I threw it into a nearby bin.
If I hadn’t thrown it into the bin I would probably have continued buying it and be have a codeine problem today.
I had a lucky escape.