I think Max would fail the test for either *watch dog* or *guard dog* since he doesn't bark when the doorbell rings or anyone comes through the front door or the side gate.  He just assumes everyone who comes is here to play with him and they go immediately to the head of his list for new BFF. I honestly think that someone could be strangling me with one hand and if they were able to scratch his ears with the other, he'd be OK with whatever is going on.  The only thing he  barks at is the leaf blower.

Joyce