(quoted from post at 20:41:41 09/29/13) Out-swing doors have hinge pins on the outside. Pretty easy matter to punch out the pins and remove the door. Doh!
Thats a common misconception but not really true. Its true if you just grab some el-cheapo hinges off the shelf at Menards. Wile E is looking higher end than that, commercial hinges have various systems to make the hinges "tamper proof". The most common is a set screw that goes in from the side of the hinge and holds the pin down (the pin has a groove so the set screw can go in deeper, preventing the pin from being lifted). This set screw is only accessable when you open the door, once you close the door its hidden. Here is a picture of a modestly priced hinge with a set screw visable.
Another thing to remember, on higher end hinges, they are ball bearing and usually have a swaged cap on the bottom, rather than the pin going all the way to the bottom like in your house (you can see it in the picture above). In your house, you take a screw driver, tap the bottom of the pin up, then the top has some space so you finish tapping it up there. On a commercial hinge, there is a blind cap with knurling on it that is pressed in or welded on. This prevents tapping the pin up and out (in addition to the set screw).
Another little trick I was taught to thwart the vandals and thieves was to surrender the pin.... at least part of it. Cut the pin into sections and drive them in from the top, leaving the top part of the pin that can be removed but the bottom pieces are trapped in the hinge. Good luck getting that hinge apart... the sun will be up before the bad guys figure that one out.
Piano hinges pretty much eliminate worrying about pin removal and they add peace of mind if you are worried about the hinges simply being cut off with a chop saw. They are not chop saw proof but instead of 3 hinges that are 5 inches high, you have a solid hinge that is the height of the door. But if a criminal brings a chop saw, they are getting in toot sweet anyway....
Also, lets not forget, with a custom door you get custom installation. With that comes such features like bolts on a safe. Easily made (even by a homeowner if they do the install) and very effective. Simply putting a few pins through the hinge side of the door to act as bolts like on a safe door, makes the door all but impossible to remove from the outside. Here is a webpage that talks about it, but I have never seen anybody make the pins with nails like was talked about, always heavy round stock.
http://ourlocksmith.net/how-to-secure-out-swinging-door/
Remember, every roadblock you can think up can be defeated by a well motivated criminal. The best you can do it buy yourself time. Criminals are typically lazy and scared, they want the easy score. Protect your house with visable and invisable protections and the criminals are likely to pass you by. If they try, they find you have hardened your home and they give up. Like I said above, you cant prevent everything but you can hedge your bets. It dont pay to put $10,000 into protecting your front door because a criminal will just bump your garage door with a car and crawl in. But there are reasonably priced ways to get pretty good protection, all you need to do is plan a little.