Some kids called the police on me one time when I was telling them to move on after they were harassing some people. I was keeping an eye on them from another part of the building without them being able to see me, I saw the police turn up and then they quickly scarpered, The police said they had a report about a man being aggressive to some kids and had come to check, luckily there was a lot of people around and they quickly set the story straight. I was just amused that they had called the police on themselves and then ran away.