In Scotland Barrs drinks; examples include Irn Bru, Limeade, Red Kola and American Cream Soda, are available in glass bottles with a returnable deposit of 20p. Bottle kings will return these 'gless cheques' enmasse to the nightly 'icey' and exchnge them for fags or drugs. when spotted generally greeted to a chorus of 'ching ching bottle king' - an onomatopoeic depicting the noise of glass bottle knocking together while the inebriate carries them to the van.