Meet the world's meanest boyfriend!

A German man was so tight-fisted that he left his girlfriend to cool her heels in the prison, just because he didn't want to pay a fine of just 390 dollars.

Magdalena Czerwinska called beau Max Schuster for help when she was sentenced to 15 days in prison for theft and had pay a fine to walk free.

But, Schuster refused to pay the measly sum saying he would rather save the 390 dollars for himself.

"He said he didn't feel like coming to pay the fine and so she is still stuck in jail," News.com.au quoted a police spokesman in Wanne-Eickel, as saying.

The spokesman added: "People are very worried in the current economic climate and they have to make whatever savings they can. He saw not paying the fine as a simple saving."