I have a small terrior mixed breed ( Diesel )who is an amazing guard dog . If someone sits on a bike outside he freaks and won't let the bike leave by standing in front of the bike . In some cases he ninja nips them in the ass.
The new dog ( LUMP ) is a big ,,,I think it's a Husky or malamute . He is a lot more calm but is he more intimidating and effective compared to the small dog ? He's not a biter but he is very protective . He chased a Coyote away from Diesel when dirtbiking last weekend.
Right now I think the little guy is the better shop dog but time will tell .
On a side note .The 18 foot boa constricter just freaks people out and scares Diesel not a good shop pet.