The delivery man/woman/person/whatever bring it in? Ha! They sneak up to the door, ring the bell and immediately sprint as fast as they can back to their truck so they won’t have to bring it in for you. They never hang around long enough for anyone to answer the door.
That’s not why they sprint back to their truck. They leave quickly because they are being timed. There is a GPS on them and their managers know exactly where they are at all times. They are timed from point A to point B. It is recorded when the truck stops and how much time is spent at each place. Very little time is given them and they are penalized when spending too long at a house, even down to the seconds.
Disclaimer: I do not work for a delivery company, nor do I know anyone who does. I have just seen various delivery people clicking a clock on their equipment.