2. I suppose... it was a combination of both wanting to see everything and sadism. When I love a game a lot, I prefer seeing everything it has to offer to me, so I keep 2 seperate saves for two playthroughs right now, I also appreciate the choice of being able to send him there; to actually be not nice. So while the underlying reason for choosing to send him was to see, what happens, I can't deny that I didn't enjoy that feeling of power, which will probably bite me in the ass later, but that's then and this' now.
3. In a future, that's not so dim, all I would like to do is either give him the best 70 or so years that he's ever had or search for a way to make him mortal, so he need not suffer the hands of any other abusive masters that may come.