"The fatal dose of pure nicotine is approximately 40-60 mg (0.6-1.0 mg/kg, 1-2 drops) i.e. the quantity contained in 2 g of tobacco (equivalent to 2 common blend cigarettes; 15-25 mg of nicotine per cigarette) "
So you are trying to say that smoking 2 cigarettes is enought nicotine to kill you???
Exactly! I can buy the 72 cups of coffee being lethal to 50% of people who would drink such an amount, but 2 cigs "killing" 50% of the people who smoke them, no.