I like this thread. I'm curious why I showed up (both moon and significator) in the twelfth for mine - Am I in denial or does he see MY mental anguish??? I love 12th house horary results...(weirdo 12th house leo moon here...). And actually, his sun is conjunct my moon...I dunno. The question was about whether or not I should reveal my feelings to him - when 12th house boggles show up I run now.
regarding the initial question - I've usually found that when the quesited shows up in 12 his intentions are to say the least - less than "chivalrous" as Bob Z had mentioned...a big red flag over and over again in numerous charts...
Good luck!
L