It used to happen to me a lot, but now I just live in a situation with a lot of stoner musicians and shit and I smoke several times a day, and I've just gotton used to functioning stoned so I can recall shit and think just fine when I'm stoned now. Just gotta excercise those muscles while your stoned. Do all of your language arts homework stoned. The worst thing for your brain is not being in school. When you're in school you are doing that shit everyday and it stays in your mind crisp. When you're out of school and you're spending more time doing stupid things instead of smart things and then go back you lose a lot of that shit. Like today I was trying to figure out how much change you would get back if you took .97 from 1.00. And I coulden't do it so I had to ask my manager to use her calculator because I knew I was close but I wasn't sure so I just wanted to make sure.