If by that she means that finding herself awake at 330am after a 8am cup of starbucks decaf (as i do far too often), I recently saw the staff at my local starbucks grinding beans for a pot of decaf, right after grinding beans for a pot of regular...they don't clean those grinders, which means there easily could be some caffeinated coffee mixed in with the newly ground decaf.

When I asked about it, I was told it was SOP to grind one after the other...and that was confirmed by the manager of another local starbucks.