A police officer removes debris to let Air Canada employees get through a gauntlet of laid off Aveo employees in front of the aircraft maintenance company's plant Tuesday, March 20, 2012 in Montreal. The strain of ever-changing hours, the demands of on and off-hour job duties and the rigours of an intolerant corporate culture are reeking havoc with officers' work-life balance, according to researchers at Carleton University and Western University.THE CANADIAN PRESS/Ryan Remiorz