I agree with what you have to say, but here: >"Hey, pot is going to temporarily make you dumber. Maybe don't use it a lot while you're trying to get through sc

I agree with what you have to say, but here: >"Hey, pot is going to temporarily make you dumber. Maybe don't use it a lot while you're trying to get through school. Thanks." You're inviting devil's advocates here though, maybe rephrase it as "pot may make you dumber". Otherwise, I think you may be providing some with a goal, something to prove. I didn't enjoy finding out my health class was dead wrong about marijuana's effects and this was certainly solid motivation to get into it at that time.