I think that while second hand smoke is indeed dangerous, it is even more dangerous for people to think that because they have the power to ban people from being naughty in private, they should use that power. And use it so selectively, just because the personally disapprove of smoking. Laws should be logical, and they should be fair. And you should deal with big evils before small evils.
Mind you, at a personal level, I will find my local pub a vastly more enjoyable place if it doesnt stink of smoke.
    But, and I will say it till I am blue in face(as I would be if I smoked): I cannot understand why a group of smokers cant buy a building and run a Smoking Club. What gives all you suppoerters of the Bill the moral right to stop them? A simple answer will suffice...like "We are powerful, and they aren't. And we are hypocritical, and they aren't".