I don't think Geof could be high and do such intricate work on those cakes. Besides if he were a pot smoker, he'd be eating cake all day and he'd weigh tons.
Hey i got friends who are stonners and they aren't fat. They get munchies then hit he gym when there sober. So Geof could be one, If so then Im cool with it.
I agree, I think he's just shy. He has a very dry sense of humor and he sees a lot of things as being ridiculous. He's a great contrast to Duff who loves being in the spotlight and is a bit of a show-off.