I probably shouldn't say this aloud, but Jack is in many ways more stable and more moral than the Doctor. Which is a scary thought.
I've always thought that the PTSD was just the latest layer of the Doctor's psychosis. Like the Master, the Doctor was always mad long before the Time War. He was just a different kind of mad, which is why his moral compass points north west.
As for his companions, they never quite knew what they were in for with him. Six actually harmed his then companion during a post-regenerative episode:
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Date: 2008-07-06 03:56 pm (UTC)I've always thought that the PTSD was just the latest layer of the Doctor's psychosis. Like the Master, the Doctor was always mad long before the Time War. He was just a different kind of mad, which is why his moral compass points north west.
As for his companions, they never quite knew what they were in for with him. Six actually harmed his then companion during a post-regenerative episode:
http://en.wikipedia.org/wiki/Peri_Brown