The humble popper. Sure, it looks innocent enough - a box full of juice, or that weird UHT milk, with a very cute but practical straw glued to the front. The perfect thirst quencher after a double period of Geography, spent studiously writing notes to the friend who sat directly next to me (carefully decoding hidden meaning in all those completely meaningless things adolescent boys say). But how many times would I reach into my backpack, hand fossicking around for that box, only to find it deflated at the bottom of my bag, while my science textbook greedily drank it all up? More than I care to remember. The night would be spent with hairdrying in hand, holding each warpled page apart so that they didn't stick together. Your science textbook never looked quite the same and always smelt faintly of oranges.