Opinion on smokers?

Smoking is one thing that I really vehemently despise. The smell is vile and it sticks to everything. I remember years ago, before the smoking ban here, that you used to go out in the evening and have to wash everything to remove the smell.

The health issue with smoking is pretty much self-explanatory. The smoke contains thousands of chemicals, many of which are known to cause cancers and other health related issues.