Pub Toilet and Mugger (Night of 4(?)/11/2014

A city street with people. It is night, A group of us. A black man begins talking to us. He takes out a large instrument which ends in a kind of blade. He intends to mug us with it. No-one takes his threat very seriously. Going in and out of the pub to use the toilet. I become suddenly afraid that I will be attacked - possibly by the black man with a strange instrument that ends in an inneffectual looking blade.