Slightly off piste - I remember when I was growing up - I was a teenager in the seventies, everyone around me smoked all the time, I was a real rarity in not smoking or drinking - and I accepted it as the way things were.
Now, I look at smokers, and I think how singularly strange their habit is.
Of course, it's all learned behaviour - everyone holds their cigarette the same way, pulls the same face as they exhale, flick the ash in the same manner, but I wonder if they ever stop to consider just how odd it looks to smoke?
It really is a most ludicrous habit - it has absolutely no redeeming qualities about it whatever - it looks stupid, it smells vile, it costs a fortune, it turns you into a social pariah, and it kills you.
How on earth do people embark on this mad behaviour?