As if bringing in and eating copious amounts of noisy, odorous food wasnt bad enough, some people feel so entitled to their enjoyment at the movies that theyll just dump their leftovers, rubbish and whatever receipts they might happen to have on them all over the floor and seats, treating a very public space as though it were their own private skip. You might not think this is too bad or, at the very least, that it doesnt make this worse for anyone else in the cinema. And youd be right, at least for the people who are leaving their trash in your screen. But what about the showing after yours? Multiplex ushers can only clean so much so fast, after all, especially on minimum wage and with six other screens coming out in the next half hour, so theres bound to be some debris and stickiness left over for the next audience to complain about if they want to finish before the next round of ads begin. Save the ushers, save the world, as the old saying goes.