Originally Posted by rach24

Hi,
I'm still deciding on getting a boston and one of my decisions is the sex of the dog. I have a female 7 year old bullmastiff. I have considered getting a male boston but my only concern is the "marking of territory".... I am very nervous about that and heard that only 50% of neutered males will stop doing that behavior. Can someone shed some light on this for me?! Thanks.
Rachel