Well my backyard will always be safe from cats and other critters,
with Murph and Maddie on the job and from human intruders
with Oz. Oz even barks at me, when I first come through
the fence, so nobody's going in my backyard unannounced.

Murph and Maddie on the other hand only concern themselves
with critters. My sister needed to get in my house, when I
wasn't going to be home, so I left her a key, hidden on the
patio. Murph and Maddie were sleeping on the patio and
didn't even budge, with her rummaging around looking for
the key and then letting herself into the house.

Inside the house, Murph would sleep through a tornado ripping
the roof off the house, so doubt a burgular breaking and entering
would be enough to wake him from the dead. Maddie use
to be a pretty good watchdog. When she barked it meant
something. She's a pretty heavy sleeper too, now that she's
getting up in years, so she's not very reliable anymore either.

Oz is pretty good though. He doesn't bark, but he lets me know
when something's up. My mom came to visit and she has a key.
I was in the back bedroom with the door shut, watching TV
with Murph and Maddie and Oz. Mom just let herself in. I had
no idea she was in the house, but all of a sudden Oz's body
posture got very alert, then he ran to the bedroom door, then
back to me. He did this a couple of times, until I finally decided
to see what was up. Murph and Maddie slept through the
whole thing.

All 3 are very good about not barking, just to be barking in the
house. So normal everyday noises, like people passing by or
the door bell ringing doesn't set them off. So if they were to
bark or in Oz's case have a behavior change, I pay attention.

Par...