On the smoking -
It's time to sit down and have a firm but loving talk about the dangers of smoking. Tell it how many cars find themselves in the salvage yard as a result of excess smoking. Even the best people will only put up with SO MUCH of it. Be sure to tell it that you understand that it's old enough to smoke legally but it's NOT good for you no matter how old you are.

If this doesn't fix the issue you may need to resort to surgery of one form or another. The guys have provided that info.

Dan