No $hit

Ok. I know this is like a no duh moment, but seester has a link to a article about pot smoking inhibiting intellect. I know most intelligent people would say in a sarcastic manner "no shit?". Well, my neighbor had a visitor in town who, when around somebody who had given up pot and was lighting up a cigarette, she said "I would rather smoke pot than tobacco because cigarettes just kill your lungs." Apparently she would rather kill her lungs and her brain at the same time.