A {Chesapeake Bay Retriever} is a very protective species of dog.
They were left alone to guard the hunters boats & ducks for market, when the hunter went into town to cash in.
They have the bit force of a pitbull if need be.
Labs are protective as well, maybe not to the point or level of a Cheasy but close.
My Black Lab went thru the window after someone before guarding the house while me & the wife were gone shopping.
Weimaraner's don't have the coat needed for the cold water.
Only weimaraner,I knew that hunted was for hogs.
You get ya a Chesapeake Bay Retriever and your all good on both ends.
The 3, I had owned never took crap off of any other dog & were always on guard of me & my stuff.
Ask Greg, he will tell you the same about the breed.