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.