German discus thrower Robert Harting celebrated so hard after winning gold at the London Olympics he lost the accreditation he needed to get into the athlete's village and slept in a train station.

A bad back prevented him from qualifying for the final of the event in Rio but the gold stayed in the family as his little brother Christoph produced a personal best to secure a shock win.

But the younger Harting was hardly in the mood to match his brother's post-event partying when he spoke to the media after the medal ceremony.

"I think after winning the Olympic Games, you first of all should have the opportunity to celebrate with people that are closest to you and hug them, in my case this is my family," Christoph said.

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"Until now, two hours after the competition, I still did not have the opportunity to reach them and therefore I am feeling miserable right now."

Christoph also looked agitated during the medal ceremony. He kept moving around and even dropped the small trophy being handed out to all medal winners in Rio.

His explanation for his unsettledness was hilarious.

"Why I couldn't stand still on the podium? Probably (because) I am a person that needs rhythm, that loves good music and it is difficult to dance to the national anthem," Christoph said.

Despite lines like that, the 26-year-old - who threw 68.37m to edge ahead of silver medallist Piotr Malachowski of Poland (67.55m) and countryman Daniel Jasinski (67.05m) who won bronze - explained why he avoids the press.

"Obviously, as an athlete I am a public figure, after reaching a certain level and at the latest now after winning the Olympic Games," Christoph said.

"There are different kind of personalities, extroverted people who pay attention to how they are looked at and how they are perceived and there are introverted people like myself. I just feel out of place right now.

"I feel uncomfortable to be talking to you right now. I do not have to look good in the eyes of other people. Honestly, I do not care what you think about me. I am not a PR person. I don't like to answer questions. I had bad experiences. But the main reason is that I am an athlete. I do not look for publicity. I enjoy what happens in the stadium, this is my stage.

"Everything else I leave to other people that have to say more and want to say more," he said.