Sometimes they hand you the empty cup, though. Actually, it's almost an automatic thing. But, still...you can refuse to take it. I think the environmental issue is neither here nor there. With or without the roll up game, I go through the same amount of cups. I know it's environmentally wrong, but I tried the travel mug thing. It usually ends up rotting in the backseat.
OH...and I'm making poutine right now...to go with our Scottish meatpies. Ben...you can't have none. I'm only thinking of your weight, dearheart.