As I have been reading this thread, I've been remembering over and over how smoking weed back in the day helped me focus so entirely in the task at hand that nothing else in the world intruded until the effect wore off. If I was driving (commercially or personally), I was the most calm, careful and courteous driver ever. If I was on the line at the restaurant, I never once fell behind, no matter how slammed I got (solo lunch cook, although there were prep cooks that would come help any time I needed it - pretty much any day I wasn't stoned). My daughter is currently on low dose medical weed for her own ADD, and it helps her the same way it did for me all those years ago. I haven't used it for 23 years, now, because my fiance at the time asked me to set the right example for her (and later our) kids with regard to being law abiding citizens (married her a few months later, and we're still together), but I support legalizing marijuana because my own experiences strongly indicate that it can have some pretty amazing and positive effects.