Fact: Pot makes you think that dumb things are rational.
Incorrect. Pot makes dumb people think that the irrational things they do are, in fact, rational.

This is compliant with my belief that marijuana simply amplifies any characteristics you already possess. It won't make you a fat lazy asshole but if you like to sit on the couch and munch chips every couple nights, start smoking pot and that will turn into Hop Sing's being at number two on your speed dial, right after Domino's.