There used to be this tramp where i live in newport that we called dirty harry, mainly because he stunk. But was great as kids as if you got to close to him he would chase you for a while. Only for a couple of metres but we used to run for miles to get away from him, it was brill.
Another dude used to stand at a junction all day in woolwich whilst i was posted there, when he would see us in our obviously camo vehicles he'd spring to attention give his best salute then frog march up the road with us .
Another guy was when i had my first job in sainsburys before i joined the army, he had torrets i think, he came in one day with a proper smashed up umbrella and gave it too customer services saying could they fix it for him. They thought he was having a laugh so sought of said ok, and put it in the bin under the desk. Then when he finished his shopping he came back and asked for it. They couldn't believe it and he went mental he saw they hadn't fixed his brolly. grabbed it and started smashing on the floor calling everyone sons of the devil and that we will rot in hell