Sorry to hear of the misfortune, Graham. I can indentify with the feelings you've expressed. I was mugged at gunpoint,about 8 years ago. A crack addict came out of nowhere and hit me square in the jaw with the pistol, momentarily stunning me. He then held the gun against my forehead while going through my wallet. Apparently he was only interested in cash as he didn't care about my credit cards,phone or watch, shaking as he probed for additional money. Obviously, I'm still here and squeaked by with only a jaw injury and a few dollars lighter. I've also had the house broken into, walking in on the intruder. He escaped through a window leaving with a coin collection and some cash. It is not a feeling I want to experience again, much different than facing an adversary in wartime combat but un-nerving just the same. You feel violated and helpless as well as angry. Hope they catch the bastard.
In the U.S.,you can't just shoot these jerks or you end up in jail too, you have to be confronted and firmly believe your well-being is in danger. But....I'd rather be the one still standing and giving the explanation than the alternative. The best defense is to make it difficult and time consuming for the prospective thief. A vocal dog or two is the best deterrent,you can't bullshit a defensive canine(thief loses the element of surprise),plus good multiple locks,security lights and a clear area which doesn't give the criminal any cover to work from. In some areas here, an American flag flying in the yard also gives the perpetrator a good idea of what's waiting for him inside. If you're home at the time, they all know the sound of a 12 gauge chambering a round and will leave quickly.
I hear you on that!!!