okay, I just scanned through the episode and the scene I've found, it's Scott asking how much Adderall he's had, but I'm sure I remember Stiles saying Ritalin, so... argh. It *could* be Scott being dumb and Stiles not bothering to argue, it could be me misremembering, now I need to watch EVERYTHING AGAIN but then hey, I was going to maybe show it to Chas anyway.