As a young child my family had a male dachsund. Unfortunately we had to give him away because he was biting the neighborhood kids who came over to play. From what I understand they are family dogs and will protect their family. The problem for us was little kids play in ways that I guess Funny (named by my sister cause he was funny-looking) thought was a threat.

I agree with Aly - male or female dachsund would protect your home.