Dax's change of personality in "the Ship" was due to them being subjected to the orbital bombardment for hour and hours. She was showing the stress from lack of sleep and the constant nearby explosions. That is why the military use loud music to get people to come out of buildings (ie: Panama)...
I agree with Chris on this one. Melora was way to bitchy. There are a lot of people who are handicapped that can still be civil. She was so insubordinate that she would have been drummed out of Starfleet. You don't talk to higher ranking officers the way she did and get away with it.
She was...