Re: Riddle me this Batman
"a transgendered person is not aroused by the sight of a member of the sex he or she desires to be"
Not sure this is universally true, I know a couple of M-to-F and F relationships.
Then there's Thomas Beatie who clearly retained an interest in men.
Personally I've never seen the point of gender specific toilets at all, unless it's at a nightclub where the gents is a sea of urine.