Similar sort of thing. I had the opportunity to catch a 'lad' who was just about to break into my tool shed, as I had heard noises in the neighbors garden I stood in the dark and waited, sure enought he came across (there was a second but he remained in the neighbors) and tried to open the shed. Anyway I pounced on him, I wasn't waiting to see if he was armed or even bigger than me (which he was by about a foot) grabbed him from behind and banged his thick scull against a brick wall, whilst he was dazed I gragged him inside the house and called the police, and got my Old English Sheepdog to sit next to him (anyone who knows those dogs will know how soft they are) which put the sh!¬$ up him. Police arrive (x2) and asked the kid what happened to his head which was rather swollen from the wall, he told them that I had hit him and I agreed to that, one of the officers disagreed with him and said 'No you didn't you fell, didn't you' this was repeated for some time me aledgedly hitting him and me admitting to it, eventually he agreed with the ofiicer that he 'fell' when he was then told off for being a liar in the first place and trying to get me into trouble. As all three left the house were the police where to take him to his parents, I was told there was nothing they could do as he was only trespassing and that was a civil matter, anyway after the lesson I taught him he won't do it again. Now if he hadn't tried to run away he wouldn't have fell against the wall.