A smoker is polite enough to ask your permission to smoke and instead of thanking him for asking and politely refusing permission, you have to give them a smart assed answer guaranteed to piss most people off. No wonder smokers hate non smokers.
The only smokers I have ever said that to were the ones who were already lighting up and expected me to say go ahead. My insulting comment gave them the permission they wanted.
Smokers don't hate non-smokers. They despise ANTI-smokers.
There actually is a difference. I have never included Ditter in the "ANTI" crowd.