In a leaked document from the American Psychiatric Association it details how much time is spent sifting through reports regarding concerned flight school instructors needing guidance on "worrisome students".
One psychiatrist speaking on conditions of anonymity said "it's amazing really, these depressive psychotics who want to harm others are obsessed with flying airliners. Some are bound to slip through the cracks. We even joke how it's the A-380 not the AK-47 the public needs to worry about."
One commercial pilot who has worked in the industry for 12 years confirmed that he suffers from horrific bouts of depression which he hides from his colleagues. "Everytime we reach cruising altitude all I can think is crash this mother fucker. I quiet the voices by repeating the mantra "in due time.... in due time....".