All of mine are mistaken for the opposite gender all the time, except for Winston (who is very obviously male, and most people just assume Dobes are anyway). Personally, I think Morgan is as feminine as Rottweilers get and people still think she's a male simply because she's a Rottweiler. I think Tango's pretty feminine too, but it seems that her colours or something throw people off and they think she's male. Her name doesn't help either, as there are more male dogs named Tango than female. That, and I don't "dress" her in girl collars. She wears either teal or green most of the time (pr her brown leather collar), and a brown leather leash. I doubt it'd help if she was wearing a pink collar anyway though. It doesn't really bother me too much unless I have to say "she" or "her", etc. over and over and they still don't seem to get it.