The plane passengers putting lives in danger and costing airlines hundreds of thousands of pounds with their unruly behaviour. 5 live Investigates has been given exclusive figures which show more than a four-fold increase in the number of incidents being reported to the UK authorities over the last three years with drink and drug-fuelled disorder now being reported on a daily basis. In 2013 the Civil Aviation Authority received just 85 reports of passengers behaving badly - last year there were 386 incidents.