im just gonna write about kr8's question about nicotine being a stimulant...
i thought more people would know this as we are all addicted to the stuff but...Depending on the Dosage, Nicotine is can be either a Depressant and Stimulant. With a low dosage it is a stimulant, where as with higher dosages it becomes a depressant.
kinda like alcohol
yeah tests with caffine have shown the same thing...people were wondering why sleepy drivers slamming coffee weren't all wired...in fact the opposite was happening..