My own little protector

So my dog, Sebastian, has proven that he will protect me if someone unknown is in our home. He is a sweetheart to strangers when we are outside, but once someone crosses the threshold of our house, all bets are off. He barks and growls at people new to the house. I kinda like it. He won't harm anyone, but it does make me feel better that he will not welcome a stranger in our home. I am quite amused by his overprotective nature. He is a sweet baby and a helluva protector.