You can’t make this stuff up. From Aviation Herald:
A source had told The Aviation Herald that the aircraft was enroute, when the captain discovered that he was still carrying ammunition consisting of 10 bullets in his luggage, the ammunition not being permitted to be taken into Germany. The captain therefore decided to get rid of the ammunition and disposed of the ammunication into a waste bin. “Unfortunately” a passenger lost her ring in flight, the flight attendants assisted in the search for the lost ring and also checked the waste bins. A flight attendant thus discovered the bullets, dutifully brought and reported the bullets to the captain, who now decided to ultimately get rid of the bullets and dumped them down the toilet. Later the flight attendant inquired again about the bullets, the captain realized that she would file a report, explained the situation to her and informed ground.
Just poor choices all around from the pilot. He could have saved everyone a lot of headaches had he just reported the bullets initially and paid the fine when he arrived in Germany.