We've all seen them - smokers huddled together in the wind and rain, having a quick ciggy, looked down upon, made to feel like lepers.
Yet those same holier-than-thou anti-smoking snobs will quite easily slide behind the wheel of their cars (most carrying just one person), drive half a mile or so, drop the kids off and do the same thing in afternoon to pick them up, causing more pollution in one day than a thousand smokers would in a year.
Then you have buses, lorries, aeroplanes, trains, power stations, fridges, boats, motorcycles - the list is endless.
So this undemocratic law that has been dumped on us, with no referendum, should be a warning to all drivers who think that banning smoking will save the world. It won't.
Only the eradication or replacement of all oil and diesel powered vehicles will do that - and soon, or the alternative will be that in 100 years or so, our planet will be a barren wasteland with babies being born with square heads, three eyes, one arm and five legs.
All right if you fancy a career as a basketball player, but not much good if you like football.
Seriously, you people out there with cars - the answer starts with you and it's no joke.
Bob Vincent, Iffley Road, Oxford
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