I am a boy person. Buddy is my first Yorkie and he was fully trained at 5mos.
He has never marked in my home or anyone else's. I have always had good
luck with the males that I have had.
Buddy was neutered at 6mos. I know that neutering prevents marking
in the males, however, if there is another male brought into the household
it may start up. When my son's male cavilier and my daughter's male
pug visit Buddy never marks. My daughter's pug does and it make me
so mad. I guess it depends on the dog. Males are just plain lover's.