For package thieves most of the problem is solved, at least for those at home most of the time, like me, by simply having the delivery man RING THE BELL. Why th

For package thieves most of the problem is solved, at least for those at home most of the time, like me, by simply having the delivery man RING THE BELL. Why this is not common practice for all deliverers, UPS/FEDEX/AZ etc. is beyond me. If the delivery man is already at the front porch all he has to do is reach for the bell. If the recipient knows about it he can be prompt, prompter than the thieves...