No, not many people mistake Bailey for a female, he's very big.
Chloe, (aka Princess Prissy Pants) well Chloe's all girl at 6 months, very ladylike and prissy UNTIL you see her in action with all the big boys. hehehe
But it didn't ever bother me if someone mistook one of my dogs in the past for male or female when it was the other.
Now, if someone had mistook a child of mine as male and it was female or vise versa then I probably would have been upset. But a dog.....no.

Hey borzoimom.....if you put the ears up on top of the Borzoi's head erect it would look like it was related to a Collie sort of.