I got Ronin when he was already an adult, so I'm not sure about him.
My female, Ilsa, was protective from Day One. She cornered an intruder at 5 months of age. However, she's almost over-territorial... she's constantly vigilant and loves to bark at possible "bad guys"... even if it's just an old lady or a bunch of leaves being blown by the wind.
Ronin is quieter and doesn't bark at deliverymen or door knockers, but he protected my property from a downstairs neighbor who broke in to "borrow some milk" - she apparently closed the door before he got to her, but he jumped a 4" baby-gate and hit the door snarling and barking just as she heard him coming and closed the door... he went from snoozing on the couch to Instant Guard Dog in less than five seconds.
My female, Ilsa, was protective from Day One. She cornered an intruder at 5 months of age. However, she's almost over-territorial... she's constantly vigilant and loves to bark at possible "bad guys"... even if it's just an old lady or a bunch of leaves being blown by the wind.
Ronin is quieter and doesn't bark at deliverymen or door knockers, but he protected my property from a downstairs neighbor who broke in to "borrow some milk" - she apparently closed the door before he got to her, but he jumped a 4" baby-gate and hit the door snarling and barking just as she heard him coming and closed the door... he went from snoozing on the couch to Instant Guard Dog in less than five seconds.