They are not 'far fetched' at all, not even 'a bit.' They are entirely practical, and not technical (the way my mind works) which is great. Tostee was not playing out some master plan here. He was clearly reacting to what he was presented with by what he described as a psycho and the recording backs that up. IMO he had every reason to come to that conclusion, given her erratic conduct. She unlawfully assaulted him in a manner which likely could have killed him. Instead of belting her physically, he acted with great restraint, removed her to the balcony for no reason other than to bring her violence to an effective end, and there the incident ought to have concluded. Irrationally, W chose a dumb option he cannot be held responsible for. Not guilty.