The internet is full of "useful" info....
http://parentingteens.about.com/cs/marijuana/a/420meaning.htm
Don't forget to read the article on "How To Raise A Drug-Free Teen" when you're finished with this!!!
That's an even better read...I took the quiz and found out that I am in fact on drugs. Now it's time to set some ground rules and make sure i implement 10 things to make sure I never do it again.