Robert Korn, who sports a multi-coloured Mohican hair cut and wore a black punk T-shirt when he appeared on the "Who wants to be a Millionaire" show on Monday, won €64,000 before backing out when he was unsure of a final answer.
"I've never in my life had as much money as I won yesterday," he told the Tagesspiegel newspaper. And he said he had listened to the advice of his girlfriend when deciding not to risk it on an answer of which he was not sure.
"I promised my girlfriend not to gamble everything," said the Berlin-based singer in amateur punk band No Exit.
And even though Korn walked away from the show with bags of money, he said he would probably only be left with a few euros to buy a couple of presents for his kids - most of the money will be eaten up by debts.
"I opened a punk shop five or six years ago... but three quarters of a year ago I had to close. I'm a good salesman but not a good businessman," he said.
"My tax adviser went bust and I failed to keep an overview of it all... now the lion's share of the money will have to go the tax office and the employment office."
He said the shop had sold punk supplies such as home-printed T-shirts, music CDs, badges, boots and 49 different colours of hair dye.