Some guard dogs you are. What a sorry lot!
Mine scared a tow truck driver to death the other day. A guy with mechanical problems had ditched his truck in my driveway. When the tow truck got there, I went down to see if he needed help. Buck went with me, and suddenly started running full tilt down the driveway.
The driver climbed up on top of his truck to get away. The dog tore right past him without a second look, and sprinted after a squirrel on the other side of the road.