into this phenomenon a bit more and it's more common than you think.

You do wonder at what point during the 10+ hour flight at 38,000ft with very little oxygen and -50 degree temperatures they start to realise that this might not have been a particularly brilliant plan.

http://www.airpor****ch.org.uk/2015/06/falling-objects/

EDIT: Oh, fúck this site's absurd censorship. The site is www.airportwátch.org.uk but obviously without the silly accent thingy.