The main reason that a UPS or a Fed Ex or any other type courier service would show up at a particular timeframe every time they deliver something to you is most likely because they are passing by your area at around that time every day on their route. Contrary to the belief of many people, they are not working only for you. They are picking up and dropping off packages from lots and lots of places and for optimum efficiency each driver has a route they basically follow, so if that route of businesses that they have to make trips to every day takes them by your house at around 9 am every day, and you have a package to be delivered, chances are that they will come at about 9am. They aren't going to make a special trip out of the way unless there is some special situation going on. As for someone just leaving a package on my doorstep, I would be ****ed if they just left stuff without it being signed for unless I specifically requested them to do it. Never know when someone is gonna be walking by and see it sitting there and just steal it. I have never had a prob with UPS or Fed Ex, but Airborne is the suck.