A couple of years ago, a mate had his garage door damaged and stuff taken. He called the Police and ended up in deeper trouble because he said that if he had caught the thieve/s then he would have used the 2X2 now propped up in the garage corner. He was 'Cautioned' after follow up visits from the Police.
Many years age I was involved in a frackar after another ex-mate thumped his girl friend ( it was not the first time). I was on his girl friends Fathers side and when the ex-mate turned up I informed the girls Father. The ex-mate was hiding in a house . The Father wanted to give the ex-mate a fair chance of a proper fight and at this stage I must add that the quakeing lad was afraid to come out to face his girl friends Father. The Father, in his moment of anger shouted , " I am going home to get my shot gun. When I return, if you do not come out of this house, then I will blow every window out until I hit you !"
The sad thing is that the Father ended up in Crown Court, I was a witness. He had to sell his car and other items to pay the barrister. I am talking 20 years ago.
I have read a number of threats on these pages and I have to cringe, whilst I agree with you and the right to defend, I have seen our laws in action. It is just too difficult to prosecute criminals. Much easier to prosecute the real victims of crime, and the Law in this land always does. May be that is why the turn out in the recent Vote for a Police Commissioner was so low ?