Can I vote "Nay" on all?
I think the least worse are probably
-Ex-yakuza/ mercenaries/ terrorists
Though I'm not sure you could ever be totally free of these kind of things
-Covered with scars or burnt marks
Beauty is only skin deep
-Your students/ adopted daughter
Students: if they're adults (or both just a few years apart)?Why not?
Adopted daughter: NO, even if she is an adult (apart from a probably big age difference)
you chose her to raise as a daughter, not your future lover
Your feelings be damned, you're a man not an animal (just don't get drunk while in moral emotional turmoil and she decides to dress up for you
)
I'll add a more real-world turnoff:
If she's already in a relationship
(Let's not argue the type/quality of relationship she already has, let's just keep it at good/healthy/normal, not abused/battered/neglected kind)
The dilemma has 2 sides, morals and trust
-Am I such a bastard to (try to) destroy a relationship
-If she decides to break it off for me, will I end up being broken off for another guy?
In both cases it's a matter if integrity
In the first just my own
in the second of both of us
My concience wouldn't give me a good night's rest
for making her 'betray' someone (Golden rule kind of principle),
And/or -well aware I'm not the best thing since [insert male sexsymbol of choice]-
allowing doubt and insecurity to her commitment
(Which Ironically in such a case is founded on truth, not paranoia)