From London Bridge to Athens

She told Wales on Sunday: "As I've always got Londoners hurling abuse at me, complaining and shouting 'why is my train late?' I try to tell them it's not my fault but they never listen. Cockneys aren't the most friendliest at the best of times.

"It can get a bit crazy but I do enjoy it. I do feel like hitting them sometimes but it's more than my job is worth. However, it has made me quite a laid-back person and now I just smile at them.

"I can take people screaming it me because I don't really have a temper, which is good as I know one little lapse will get me sacked.

"And that, I suppose, in a way helps my discus throwing as I stay relaxed and keep my cool.

"But if I hadn't have got to the Olympics I might have shouted back, I would have been the manager from hell for a month!" adds Roles, ranked 40th in the world.

The reigning AAA Champion works for up to 40 hours a week at the busy railway station, supervising 50 staff and overseeing services to Brighton and the rest of the Sussex coast.