I spotted this gent's hat from afar and decided to stop him. He was quite formally dressed for Columbia Road although it was Sunday to be fair. He responded with a quick 'yes' at first but as I began to photograph him, he proceeded to ask me questions why I was stopping people, if I was going to ask for something in return and finally sounding slightly distressed he asked me if I would be expecting something in return in a very meaningful tone of voice. I laughed and assured him I wasn't expecting anything and walked on. It was almost endearing.