We have the most awesome FedEx and UPS delivery people imaginable. Most folks, when greeted at the front porch by a tall, 80-pound black lab [that is not restrained/contained in any way] would be a little leery of progressing past this fearsome sentinel.
Instead, they leave him treats. And pats on the head.
Between the delivery guys and our neighbor Millie, that dog is spoiled rotten.