An Edeka customer was in for a surprise. He discovered a bug in his product.

But instead of criticizing the supermarket chain, he even thanked them for it. He posted a picture to which he wrote: "This was unexpected, thank you Edeka" But why? He had probably felt the positive effects of a production error and bought seven pretzel croissants for the price of six in his Edeka branch. He also added an emoji crying with laughter tears and a thumbs up to his tweet.