One thing I have to comment on from the original story Wisher posted a link to. While DUI is something I do not accept, potheads were always a welcome surprise when I worked security. If I have to deal with a person who's high, I'll take the pothead over a speed freak any day. The only risk with them that I've noticed, is that they are sometimes too dumb to understand simple instructions. But they were never aggressive, while someone who has just injected whatever drug has been mixed with the bleach and whatnot in their syringe is completely unpredictable.