+1 on the Aussie (aka Blue or Red Heeler).

I had one for 16+ years and she was very well trained. Good medium sized dog. Great coat. Very intimidating with the mask, but mine was a sweetheart (although very protective).
How can this be, you ask? She would put herself between my kids and any stranger or potential threat. She didn't bark or growl. She just stood there and stared.

Very good at herding my kids too.


Tango61
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