It's 7:30am and I'm heading for Gloucester Road tube station to get the Piccadilly and Central lines east. I'm on a work experience as part of my course at university. I've been given training along with others who have volunteered to assist in all sorts of ways at the World Championships. We've been supplied with an Oyster Card to help out with travel expenses. We're either working at the Paras in July or the IAAFs in August. I stand out from the workers crammed into the tube in my vibrant pin...