Actually, no I'm not, sounds like something someone "lacking intelligence" would say. There are professors all over that have a smoking habit. I'm a college grad who unfortunately picked up a bad habit. Certainly doesn't make me dumb. You're pretty ignorant with your statements. It's a bad habit people pick up for different reasons and it has nothing to do with being dumb or smart.
If anyone is "dumb" here, you are definitely making a strong case with some of your recent post here. You got some soul searching to do bro. Good luck with it