Coloradokevin
Pre-takeoff checklist
No, No and No...
Oddly though, I actually don't have a problem with Marijuana consumption as long as you aren't flying (or driving etc.) while impaired.
That being said, marijuana consumption is a violation of Federal Law, and aviation is controlled by the Feds, not the states. If a pilot is willing to violate Federal law and consume marijuana knowing its a violation of federal law, what other corners might he or she cut, or rules might he or she break while flying? I am not accusing anyone, just posing an open question.
This is a good point. And, for that matter, a pot user also can't legally buy a firearm. Personally, I'm not going to fly with anyone who regularly uses marijuana, but that's just me.