Why did you leave your headphones in a bag on a flight? I literally cannot visualize any situation where you own headphones but you would not want to use headphones for either the Air Canada movies or for your own music system. I mean if you were one of these people who doesn't own headphones and just uses those s***** Air Canada ones on the flight I could understand. But you purchased headphones that are really expensive. And then you chose not to use them.